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Materials Data on Zn(NO3)2 by Materials Project

Zn(NO3)2 crystallizes in the cubic Pa-3 space group. The structure is three-dimensional. Zn2+ is bonded in a distorted octahedral geometry to six equivalent O2- atoms. All Zn–O bond lengths are 2.16 Å. N5+ is bonded in a trigonal planar geometry to three equivalent O2- atoms. All N–O bond lengths are 1.26 Å. O2- is bonded in a distorted bent 120 degrees geometry to one Zn2+ and one N5+ atom.

36 MATERIALS SCIENCE↗

Materials Data on Zn(NO3)2 by Materials Project

Zn(NO3)2 crystallizes in the orthorhombic Pca2_1 space group. The structure is three-dimensional. there are two inequivalent Zn2+ sites. In the first Zn2+ site, Zn2+ is bonded in a distorted octahedral geometry to six O2- atoms. There are a spread of Zn–O bond distances ranging from 2.11–2.24 Å. In the second Zn2+ site, Zn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Zn–O bond distances ranging from 2.13–2.26 Å. There are four inequivalent N5+ sites. In the first N5+ site, N5+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.26 Å) and one longer (1.27 Å) N–O bond length. In the second N5+ site, N5+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.26 Å) and two longer (1.27 Å) N–O bond length. In the third N5+ site, N5+ is bonded in a trigonal planar geometry to three O2- atoms. All N–O bond lengths are 1.27 Å. In the fourth N5+ site, N5+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.26 Å) and two longer (1.27 Å) N–O bond length. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Zn2+ and one N5+ atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to one Zn2+ and one N5+ atom. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Zn2+ and one N5+ atom. In the fourth O2- site, O2- is bonded in a bent 120 degrees geometry to one Zn2+ and one N5+ atom. In the fifth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Zn2+ and one N5+ atom. In the sixth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Zn2+ and one N5+ atom. In the seventh O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Zn2+ and one N5+ atom. In the eighth O2- site, O2- is bonded in a bent 120 degrees geometry to one Zn2+ and one N5+ atom. In the ninth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Zn2+ and one N5+ atom. In the tenth O2- site, O2- is bonded in a bent 120 degrees geometry to one Zn2+ and one N5+ atom. In the eleventh O2- site, O2- is bonded in a bent 120 degrees geometry to one Zn2+ and one N5+ atom. In the twelfth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Zn2+ and one N5+ atom.

36 MATERIALS SCIENCE↗

Materials Data on ZnH8(NO2)6 by Materials Project

Zn(NO3)4(NH4)2 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of eight ammonium molecules and four Zn(NO3)4 clusters. In two of the Zn(NO3)4 clusters, Zn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Zn–O bond distances ranging from 2.06–2.36 Å. There are four inequivalent N+2.33+ sites. In the first N+2.33+ site, N+2.33+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of N–O bond distances ranging from 1.25–1.30 Å. In the second N+2.33+ site, N+2.33+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of N–O bond distances ranging from 1.24–1.29 Å. In the third N+2.33+ site, N+2.33+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of N–O bond distances ranging from 1.23–1.30 Å. In the fourth N+2.33+ site, N+2.33+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of N–O bond distances ranging from 1.24–1.33 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one N+2.33+ atom. In the second O2- site, O2- is bonded in an L-shaped geometry to one Zn2+ and one N+2.33+ atom. In the third O2- site, O2- is bonded in a distorted L-shaped geometry to one Zn2+ and one N+2.33+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one N+2.33+ atom. In the fifth O2- site, O2- is bonded in a distorted L-shaped geometry to one Zn2+ and one N+2.33+ atom. In the sixth O2- site, O2- is bonded in a water-like geometry to one Zn2+ and one N+2.33+ atom. In the seventh O2- site, O2- is bonded in a single-bond geometry to one N+2.33+ atom. In the eighth O2- site, O2- is bonded in a single-bond geometry to one N+2.33+ atom. In the ninth O2- site, O2- is bonded in a bent 120 degrees geometry to one Zn2+ and one N+2.33+ atom. In the tenth O2- site, O2- is bonded in a single-bond geometry to one N+2.33+ atom. In the eleventh O2- site, O2- is bonded in a single-bond geometry to one N+2.33+ atom. In the twelfth O2- site, O2- is bonded in a bent 120 degrees geometry to one Zn2+ and one N+2.33+ atom. In two of the Zn(NO3)4 clusters, Zn2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Zn–O bond distances ranging from 2.02–2.78 Å. There are four inequivalent N+2.33+ sites. In the first N+2.33+ site, N+2.33+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of N–O bond distances ranging from 1.24–1.31 Å. In the second N+2.33+ site, N+2.33+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.25 Å) and one longer (1.30 Å) N–O bond length. In the third N+2.33+ site, N+2.33+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of N–O bond distances ranging from 1.24–1.30 Å. In the fourth N+2.33+ site, N+2.33+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of N–O bond distances ranging from 1.24–1.30 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted L-shaped geometry to one Zn2+ and one N+2.33+ atom. In the second O2- site, O2- is bonded in an L-shaped geometry to one Zn2+ and one N+2.33+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one N+2.33+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one Zn2+ and one N+2.33+ atom. In the fifth O2- site, O2- is bonded in a bent 120 degrees geometry to one Zn2+ and one N+2.33+ atom. In the sixth O2- site, O2- is bonded in a single-bond geometry to one N+2.33+ atom. In the seventh O2- site, O2- is bonded in a single-bond geometry to one Zn2+ and one N+2.33+ atom. In the eighth O2- site, O2- is bonded in a water-like geometry to one Zn2+ and one N+2.33+ atom. In the ninth O2- site, O2- is bonded in a water-like geometry to one Zn2+ and one N+2.33+ atom. In the tenth O2- site, O2- is bonded in a single-bond geometry to one N+2.33+ atom. In the eleventh O2- site, O2- is bonded in a distorted single-bond geometry to one Zn2+ and one N+2.33+ atom. In the twelfth O2- site, O2- is bonded in a single-bond geometry to one N+2.33+ atom.

36 MATERIALS SCIENCE↗

Materials Data on ZnH12(NO3)2 by Materials Project

ZnNHO3(H2)5HNO3 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of sixteen hydrogen molecules, four molecular hydrogen molecules, four nitric acid molecules, and four ZnNHO3 clusters. In each ZnNHO3 cluster, Zn2+ is bonded in a distorted linear geometry to one H1+ and one O2- atom. The Zn–H bond length is 1.51 Å. The Zn–O bond length is 1.89 Å. N1- is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of N–O bond distances ranging from 1.23–1.37 Å. H1+ is bonded in a single-bond geometry to one Zn2+ atom. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 120 degrees geometry to one Zn2+ and one N1- atom. In the second O2- site, O2- is bonded in a single-bond geometry to one N1- atom. In the third O2- site, O2- is bonded in a single-bond geometry to one N1- atom.

36 MATERIALS SCIENCE↗

Materials Data on ZnH6(NO3)2 by Materials Project

ZnH4H2(NO3)2 crystallizes in the orthorhombic Pnma space group. The structure is zero-dimensional and consists of four hydrogen molecules, eight nitric acid molecules, and four ZnH4 clusters. In each ZnH4 cluster, Zn2+ is bonded in a square co-planar geometry to four H1+ atoms. There are a spread of Zn–H bond distances ranging from 1.54–1.58 Å. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one Zn2+ atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one Zn2+ atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one Zn2+ atom.

36 MATERIALS SCIENCE↗

Materials Data on Zn(NO6)2 by Materials Project

(ZnO5)2(NO3)4O2 crystallizes in the orthorhombic Pnma space group. The structure is zero-dimensional and consists of eight nitric acid molecules, four water molecules, and four ZnO5 clusters. In each ZnO5 cluster, Zn is bonded in a 5-coordinate geometry to five O atoms. There are a spread of Zn–O bond distances ranging from 1.84–2.10 Å. There are four inequivalent O sites. In the first O site, O is bonded in a single-bond geometry to one Zn atom. In the second O site, O is bonded in a single-bond geometry to one Zn atom. In the third O site, O is bonded in a single-bond geometry to one Zn atom. In the fourth O site, O is bonded in a single-bond geometry to one Zn atom.

36 MATERIALS SCIENCE↗

Materials Data on ZnH8C4(NO3)2 by Materials Project

ZnH6(CO2)3CN2H2 crystallizes in the orthorhombic Pnna space group. The structure is one-dimensional and consists of four diaziridine molecules; four hydrogen molecules; and two ZnH6(CO2)3 ribbons oriented in the (0, 1, 0) direction. In each ZnH6(CO2)3 ribbon, Zn2+ is bonded in a distorted see-saw-like geometry to four O2- atoms. There are two shorter (1.86 Å) and two longer (2.32 Å) Zn–O bond lengths. There are two inequivalent C2+ sites. In the first C2+ site, C2+ is bonded in a tetrahedral geometry to two equivalent H1+ and two equivalent O2- atoms. Both C–H bond lengths are 1.12 Å. Both C–O bond lengths are 1.39 Å. In the second C2+ site, C2+ is bonded in a trigonal planar geometry to one H1+ and two O2- atoms. The C–H bond length is 1.10 Å. There is one shorter (1.23 Å) and one longer (1.33 Å) C–O bond length. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one C2+ atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one C2+ atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 120 degrees geometry to one C2+ and one H1+ atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to one Zn2+ and one C2+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to one Zn2+ and one C2+ atom.

36 MATERIALS SCIENCE↗

Materials Data on ZnC4(NO3)2 by Materials Project

ZnC3(NO2)2CO2 crystallizes in the orthorhombic Pnn2 space group. The structure is three-dimensional and consists of four carbon dioxide molecules and one ZnC3(NO2)2 framework. In the ZnC3(NO2)2 framework, Zn2+ is bonded in an octahedral geometry to two N3- and four O2- atoms. There is one shorter (1.94 Å) and one longer (1.95 Å) Zn–N bond length. There are a spread of Zn–O bond distances ranging from 2.18–2.42 Å. There are four inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a linear geometry to one N3- and one O2- atom. The C–N bond length is 1.19 Å. The C–O bond length is 1.22 Å. In the second C4+ site, C4+ is bonded in a linear geometry to one N3- and one O2- atom. The C–N bond length is 1.19 Å. The C–O bond length is 1.22 Å. In the third C4+ site, C4+ is bonded in a linear geometry to two equivalent O2- atoms. Both C–O bond lengths are 1.17 Å. In the fourth C4+ site, C4+ is bonded in a linear geometry to two equivalent O2- atoms. Both C–O bond lengths are 1.17 Å. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a bent 150 degrees geometry to one Zn2+ and one C4+ atom. In the second N3- site, N3- is bonded in a distorted linear geometry to one Zn2+ and one C4+ atom. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to one Zn2+ and one C4+ atom. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Zn2+ and one C4+ atom. In the third O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Zn2+ and one C4+ atom. In the fourth O2- site, O2- is bonded in a bent 150 degrees geometry to one Zn2+ and one C4+ atom.

36 MATERIALS SCIENCE↗

Foliar Spraying of Solanum tuberosum L. with CaCl2 and Ca(NO3)2: Interactions with Nutrients Accumulation in Tubers

Calcium is essential for plants, yet as its mobility is limited, the understanding of the rate of Ca2+ accumulation and deposition in tissues of tubers, as well as the interactions with other critical nutrients prompted this study. To assess the interactions and differential accumulation of micro and macronutrients in the tissues of tubers, Solanum tuberosum L. varieties Agria and Rossi were cultivated and, after the beginning of tuberization, four foliar sprayings (at 8–10 day intervals) with CaCl2 (3 and 6 kg ha−1) or Ca(NO3)2 (2 and 4 kg ha−1) solutions were performed. It was found that both fertilizers increased Ca accumulation in tubers (mostly in the parenchyma tissues located in the center of the equatorial region). The functioning of the photosynthetic apparatus was not affected until the 3rd application but was somewhat affected when approaching the end of the crop cycle (after the 4th application), although the lower dose of CaCl2 seemed to improve the photochemical use of energy, particularly when compared with the greater dose of Ca(NO3)2. Still, none of these impacts modified tuber height and diameter. Following the increased accumulation of Ca, in the tubers of both varieties, the mean contents of P, K, Na, Fe, and Zn revealed different accumulation patterns. Moreover, accumulation of K, Fe, Mn, and Zn prevailed in the epidermis, displaying a contrasting pattern relative to Ca. Therefore, Ca accumulation revealed a heterogeneous trend in the different regions analyzed, and Ca enrichment of tubers altered the accumulation of other nutrients.

Coelho, Ana Rita F. (ORCID:0000000339447240)↗

Materials Data on Zn5(NO8)2 by Materials Project

(ZnO2)5(NO3)2 crystallizes in the monoclinic C2/m space group. The structure is two-dimensional and consists of four nitric acid molecules and two ZnO2 sheets oriented in the (1, 0, 0) direction. In each ZnO2 sheet, there are three inequivalent Zn sites. In the first Zn site, Zn is bonded to six O atoms to form ZnO6 octahedra that share corners with four equivalent ZnO4 tetrahedra and edges with four equivalent ZnO6 octahedra. There are two shorter (2.01 Å) and four longer (2.05 Å) Zn–O bond lengths. In the second Zn site, Zn is bonded to six O atoms to form ZnO6 octahedra that share corners with four equivalent ZnO4 tetrahedra and edges with four ZnO6 octahedra. There are a spread of Zn–O bond distances ranging from 2.01–2.07 Å. In the third Zn site, Zn is bonded to four O atoms to form corner-sharing ZnO4 tetrahedra. The corner-sharing octahedra tilt angles range from 54–55°. There are a spread of Zn–O bond distances ranging from 1.89–1.96 Å. There are four inequivalent O sites. In the first O site, O is bonded in a trigonal planar geometry to three Zn atoms. In the second O site, O is bonded in a trigonal planar geometry to three Zn atoms. In the third O site, O is bonded in a trigonal non-coplanar geometry to three Zn atoms. In the fourth O site, O is bonded in a single-bond geometry to one Zn atom.

36 MATERIALS SCIENCE↗

Materials Data on Zn5H2(NO7)2 by Materials Project

Zn5(HO4)2(NO3)2 crystallizes in the monoclinic C2/m space group. The structure is two-dimensional and consists of four nitric acid molecules and two Zn5(HO4)2 sheets oriented in the (1, 0, 0) direction. In each Zn5(HO4)2 sheet, there are three inequivalent Zn sites. In the first Zn site, Zn is bonded to six O atoms to form ZnO6 octahedra that share corners with four equivalent ZnHO3 tetrahedra and edges with four ZnO6 octahedra. There are a spread of Zn–O bond distances ranging from 2.01–2.07 Å. In the second Zn site, Zn is bonded to one H and three O atoms to form corner-sharing ZnHO3 tetrahedra. The corner-sharing octahedra tilt angles range from 55–56°. The Zn–H bond length is 1.67 Å. There is one shorter (1.94 Å) and two longer (1.95 Å) Zn–O bond length. In the third Zn site, Zn is bonded to six O atoms to form ZnO6 octahedra that share corners with four equivalent ZnHO3 tetrahedra and edges with four equivalent ZnO6 octahedra. There are two shorter (2.01 Å) and four longer (2.06 Å) Zn–O bond lengths. H is bonded in a single-bond geometry to one Zn atom. There are three inequivalent O sites. In the first O site, O is bonded in a trigonal planar geometry to three Zn atoms. In the second O site, O is bonded in a trigonal planar geometry to three Zn atoms. In the third O site, O is bonded in a trigonal non-coplanar geometry to three Zn atoms.

36 MATERIALS SCIENCE↗

Materials Data on ZnH24C6(N7O6)2 by Materials Project

ZnC6H24(N2O)6(NO3)2 crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of eight nitric acid molecules and four ZnC6H24(N2O)6 clusters. In each ZnC6H24(N2O)6 cluster, Zn2+ is bonded in an octahedral geometry to six O2- atoms. There are a spread of Zn–O bond distances ranging from 2.10–2.16 Å. There are three inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a trigonal planar geometry to two N+1.86- and one O2- atom. There is one shorter (1.34 Å) and one longer (1.35 Å) C–N bond length. The C–O bond length is 1.28 Å. In the second C4+ site, C4+ is bonded in a trigonal planar geometry to two N+1.86- and one O2- atom. There is one shorter (1.34 Å) and one longer (1.37 Å) C–N bond length. The C–O bond length is 1.28 Å. In the third C4+ site, C4+ is bonded in a trigonal planar geometry to two N+1.86- and one O2- atom. Both C–N bond lengths are 1.35 Å. The C–O bond length is 1.28 Å. There are six inequivalent N+1.86- sites. In the first N+1.86- site, N+1.86- is bonded in a trigonal planar geometry to one C4+ and two H1+ atoms. Both N–H bond lengths are 1.02 Å. In the second N+1.86- site, N+1.86- is bonded in a trigonal planar geometry to one C4+ and two H1+ atoms. Both N–H bond lengths are 1.02 Å. In the third N+1.86- site, N+1.86- is bonded in a distorted trigonal planar geometry to one C4+ and two H1+ atoms. Both N–H bond lengths are 1.02 Å. In the fourth N+1.86- site, N+1.86- is bonded in a distorted trigonal planar geometry to one C4+ and two H1+ atoms. Both N–H bond lengths are 1.02 Å. In the fifth N+1.86- site, N+1.86- is bonded in a trigonal planar geometry to one C4+ and two H1+ atoms. Both N–H bond lengths are 1.02 Å. In the sixth N+1.86- site, N+1.86- is bonded in a trigonal planar geometry to one C4+ and two H1+ atoms. Both N–H bond lengths are 1.02 Å. There are twelve inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N+1.86- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N+1.86- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one N+1.86- atom. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one N+1.86- atom. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one N+1.86- atom. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one N+1.86- atom. In the seventh H1+ site, H1+ is bonded in a single-bond geometry to one N+1.86- atom. In the eighth H1+ site, H1+ is bonded in a single-bond geometry to one N+1.86- atom. In the ninth H1+ site, H1+ is bonded in a single-bond geometry to one N+1.86- atom. In the tenth H1+ site, H1+ is bonded in a single-bond geometry to one N+1.86- atom. In the eleventh H1+ site, H1+ is bonded in a single-bond geometry to one N+1.86- atom. In the twelfth H1+ site, H1+ is bonded in a single-bond geometry to one N+1.86- atom. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Zn2+ and one C4+ atom. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Zn2+ and one C4+ atom. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Zn2+ and one C4+ atom.

36 MATERIALS SCIENCE↗

Materials Data on ZnH16C4S4(N5O3)2 by Materials Project

ZnC4H12(N2S)4(H2)2(NO3)2 crystallizes in the orthorhombic Pccn space group. The structure is zero-dimensional and consists of eight dihydrogen molecules, eight nitric acid molecules, and four ZnC4H12(N2S)4 clusters. In each ZnC4H12(N2S)4 cluster, Zn2+ is bonded in a distorted tetrahedral geometry to four S2- atoms. There are two shorter (2.37 Å) and two longer (2.38 Å) Zn–S bond lengths. There are two inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a distorted single-bond geometry to one N+1.40- and one S2- atom. The C–N bond length is 1.28 Å. The C–S bond length is 1.63 Å. In the second C4+ site, C4+ is bonded in a trigonal planar geometry to three N+1.40- atoms. There is two shorter (1.34 Å) and one longer (1.36 Å) C–N bond length. There are four inequivalent N+1.40- sites. In the first N+1.40- site, N+1.40- is bonded in a trigonal planar geometry to one C4+ and two equivalent H1+ atoms. Both N–H bond lengths are 1.02 Å. In the second N+1.40- site, N+1.40- is bonded in a trigonal planar geometry to one C4+ and two H1+ atoms. Both N–H bond lengths are 1.02 Å. In the third N+1.40- site, N+1.40- is bonded in a trigonal planar geometry to one C4+ and two H1+ atoms. There is one shorter (1.04 Å) and one longer (1.05 Å) N–H bond length. In the fourth N+1.40- site, N+1.40- is bonded in a bent 120 degrees geometry to one C4+ and one S2- atom. The N–S bond length is 1.62 Å. There are five inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N+1.40- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N+1.40- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one N+1.40- atom. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one N+1.40- atom. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one N+1.40- atom. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a distorted water-like geometry to one Zn2+ and one N+1.40- atom. In the second S2- site, S2- is bonded in an L-shaped geometry to one Zn2+ and one C4+ atom.

36 MATERIALS SCIENCE↗

Inhibition of hot salt corrosion by metallic additives

The effectiveness of several potential fuel additives in reducing the effects of sodium sulfate-induced hot corrosion was evaluated in a cyclic Mach 0.3 burner rig. The potential inhibitors examined were salts of Al, Si, Cr, Fe, Zn, Mg, Ca, and Ba. The alloys tested were IN-100, U-700, IN-738, IN-792, Mar M-509, and 304 stainless steel. Each alloy was exposed for 100 cycles of 1 hour each at 900 C in combustion gases doped with the corrodant and inhibitor salts and the extent of attack was determined by measuring maximum metal thickness loss. The most effective and consistent inhibitor additive was Ba (NO3)2 which reduced the hot corrosion attack to nearly that of simple oxidation.

Deadmore, D. L.↗

Materials Data on ThZn(N3O13)2 by Materials Project

Th(NO3)6ZnO6O2 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four water molecules, two Th(NO3)6 clusters, and two zinc;hexahydrate molecules. In each Th(NO3)6 cluster, Th is bonded in a cuboctahedral geometry to twelve O atoms. There are a spread of Th–O bond distances ranging from 2.54–2.64 Å. There are three inequivalent N sites. In the first N site, N is bonded in a trigonal planar geometry to three O atoms. There are a spread of N–O bond distances ranging from 1.25–1.28 Å. In the second N site, N is bonded in a trigonal planar geometry to three O atoms. There is one shorter (1.22 Å) and two longer (1.29 Å) N–O bond length. In the third N site, N is bonded in a trigonal planar geometry to three O atoms. There is one shorter (1.25 Å) and two longer (1.27 Å) N–O bond length. There are nine inequivalent O sites. In the first O site, O is bonded in a distorted single-bond geometry to one Th and one N atom. In the second O site, O is bonded in a single-bond geometry to one N atom. In the third O site, O is bonded in a single-bond geometry to one N atom. In the fourth O site, O is bonded in a distorted single-bond geometry to one Th and one N atom. In the fifth O site, O is bonded in a distorted single-bond geometry to one Th and one N atom. In the sixth O site, O is bonded in a distorted single-bond geometry to one Th and one N atom. In the seventh O site, O is bonded in a single-bond geometry to one N atom. In the eighth O site, O is bonded in a distorted water-like geometry to one Th and one N atom. In the ninth O site, O is bonded in a distorted single-bond geometry to one Th and one N atom.

36 MATERIALS SCIENCE↗