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At least 739 records · Page 41
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Tm2(B2Rh3)3 by Materials Project

Tm2(Rh3B2)3 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Tm is bonded in a 12-coordinate geometry to one Tm, twelve Rh, and six equivalent B atoms. The Tm–Tm bond length is 3.51 Å. There are six shorter (3.01 Å) and six longer (3.30 Å) Tm–Rh bond lengths. All Tm–B bond lengths are 3.24 Å. There are two inequivalent Rh sites. In the first Rh site, Rh is bonded in a 4-coordinate geometry to two equivalent Tm and four B atoms. There are two shorter (2.15 Å) and two longer (2.16 Å) Rh–B bond lengths. In the second Rh site, Rh is bonded in a distorted square co-planar geometry to four equivalent Tm and four equivalent B atoms. All Rh–B bond lengths are 2.16 Å. There are two inequivalent B sites. In the first B site, B is bonded to six equivalent Rh atoms to form distorted edge-sharing BRh6 pentagonal pyramids. In the second B site, B is bonded in a 6-coordinate geometry to three equivalent Tm and six Rh atoms.

36 MATERIALS SCIENCE↗
NASA NTRS1984

LANDSAT-4/5 image data quality analysis

A LANDSAT Thematic Mapper (TM) quality evaluation study was conducted to identify geometric and radiometric sensor errors in the post-launch environment. The study began with the launch of LANDSAT-4. Several error conditions were found, including band-to-band misregistration and detector-to detector radiometric calibration errors. Similar analysis was made for the LANDSAT-5 Thematic Mapper and compared with results for LANDSAT-4. Remaining band-to-band misregistration was found to be within tolerances and detector-to-detector calibration errors were not severe. More coherent noise signals were observed in TM-5 than in TM-4, although the amplitude was generally less. The scan direction differences observed in TM-4 were still evident in TM-5. The largest effect was in Band 4 where nearly a one digital count difference was observed. Resolution estimation was carried out using roads in TM-5 for the primary focal plane bands rather than field edges as in TM-4. Estimates using roads gave better resolution. Thermal IR band calibration studies were conducted and new nonlinear calibration procedures were defined for TM-5. The overall conclusion is that there are no first order errors in TM-5 and any remaining problems are second or third order.

Malaret, E.↗
NASA NTRS1995

Forest and wildlife habitat analysis using remote sensing and geographic information systems

Forest and wildlife habitat analyses were conducted at the H.J. Andrews Experimental Forest in the Central Cascade Mountains of Oregon using remotely sensed data and a geographic information system (GIS). Landsat Thematic Mapper (TM) data were used to determine forest successional stages, and to analyze the structure of both old and young conifer forests. Two successional stage maps were developed. One was developed from six TM spectral bands alone, and the second was developed from six TM spectral bands and a relative sun incidence band. Including the sun incidence band in the classification improved the mapping accuracy in the two youngest successional stages, but did not improve overall accuracy or accuracy of the two oldest successional stages. Mean spectral values for old-growth and mature stands were compared in seven TM bands and seven band transformations. Differences between mature and old-growth successional stages were greatest for the band ratio of TM 4/5 (P = 0.00005) and the multiband transformation of wetness (P = 0.00003). The age of young conifer stands had the highest correlation to TM 4/5 values (r = 0.9559) of any of the TM band or band transformations used. TM 4/5 ratio values of poorly regenerated conifer stands were significantly different from well regenerated conifer stands after age 15 (P = 0.0000). TM 4/5 was named a 'Successional Stage Index' (SSI) because of its ability to distinguish forest successional stages. The forest successional stage map was used as input into a vertebrate richness model using GIS. The three variables of (1) successional stage, (2) elevation, and (3) site moisture were used in the GIS to predict the spatial occurrence of small mammal, amphibian, and reptile species based on primary and secondary habitat requirements. These occurrence or habitat maps were overlayed to tally the predicted number of vertebrate at any given point in the study area. Overall, sixty-three and sixty-seven percent of the model predictions for vertebrate occurrence matched the vertebrates that were trapped in the field in eight forested stands. Of the three model variables, site moisture appeared to have the greatest influence on the pattern of high vertebrate richness in all vertebrate classes.

Fiorella, Maria↗
DOE OSTI2020

Materials Data on TmMg2 by Materials Project

TmMg2 is Hexagonal Laves structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. there are two inequivalent Mg sites. In the first Mg site, Mg is bonded to six equivalent Mg and six equivalent Tm atoms to form a mixture of edge, corner, and face-sharing MgTm6Mg6 cuboctahedra. All Mg–Mg bond lengths are 3.02 Å. All Mg–Tm bond lengths are 3.52 Å. In the second Mg site, Mg is bonded to six Mg and six equivalent Tm atoms to form a mixture of edge, corner, and face-sharing MgTm6Mg6 cuboctahedra. There are two shorter (2.92 Å) and two longer (3.08 Å) Mg–Mg bond lengths. There are two shorter (3.49 Å) and four longer (3.51 Å) Mg–Tm bond lengths. Tm is bonded in a 12-coordinate geometry to twelve Mg and four equivalent Tm atoms. There are one shorter (3.64 Å) and three longer (3.68 Å) Tm–Tm bond lengths.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TmB2Ru3 by Materials Project

TmRu3B2 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Tm is bonded in a 12-coordinate geometry to two equivalent Tm, twelve equivalent Ru, and six equivalent B atoms. Both Tm–Tm bond lengths are 3.03 Å. All Tm–Ru bond lengths are 3.13 Å. All Tm–B bond lengths are 3.17 Å. Ru is bonded in a distorted square co-planar geometry to four equivalent Tm and four equivalent B atoms. All Ru–B bond lengths are 2.19 Å. B is bonded in a 6-coordinate geometry to three equivalent Tm and six equivalent Ru atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tm2Ga10Os3 by Materials Project

Tm2Os3Ga10 crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. Tm is bonded in a 10-coordinate geometry to four Os and ten Ga atoms. There are two shorter (3.19 Å) and two longer (3.26 Å) Tm–Os bond lengths. There are a spread of Tm–Ga bond distances ranging from 2.93–3.03 Å. There are two inequivalent Os sites. In the first Os site, Os is bonded to two equivalent Tm and ten Ga atoms to form distorted OsTm2Ga10 cuboctahedra that share corners with two equivalent OsTm2Ga10 cuboctahedra, edges with five equivalent OsTm2Ga10 cuboctahedra, and faces with four equivalent OsTm4Ga8 cuboctahedra. There are a spread of Os–Ga bond distances ranging from 2.64–2.71 Å. In the second Os site, Os is bonded to four equivalent Tm and eight Ga atoms to form distorted OsTm4Ga8 cuboctahedra that share corners with four equivalent OsTm4Ga8 cuboctahedra and faces with eight equivalent OsTm2Ga10 cuboctahedra. All Os–Ga bond lengths are 2.68 Å. There are three inequivalent Ga sites. In the first Ga site, Ga is bonded in a 9-coordinate geometry to two equivalent Tm, two equivalent Os, and five Ga atoms. There are four shorter (2.67 Å) and one longer (2.78 Å) Ga–Ga bond lengths. In the second Ga site, Ga is bonded in a 10-coordinate geometry to two equivalent Tm, three Os, and five Ga atoms. There are a spread of Ga–Ga bond distances ranging from 2.65–2.92 Å. In the third Ga site, Ga is bonded in a 10-coordinate geometry to two equivalent Tm, three Os, and five Ga atoms. There are a spread of Ga–Ga bond distances ranging from 2.65–2.92 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tm2PbS4 by Materials Project

Tm2PbS4 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are eight inequivalent Tm3+ sites. In the first Tm3+ site, Tm3+ is bonded to six S2- atoms to form TmS6 octahedra that share a cornercorner with one TmS6 pentagonal pyramid, a cornercorner with one TmS5 square pyramid, a cornercorner with one TmS5 trigonal bipyramid, corners with two equivalent TmS4 trigonal pyramids, an edgeedge with one TmS5 square pyramid, and an edgeedge with one TmS4 trigonal pyramid. There are a spread of Tm–S bond distances ranging from 2.63–2.86 Å. In the second Tm3+ site, Tm3+ is bonded in a 5-coordinate geometry to five S2- atoms. There are a spread of Tm–S bond distances ranging from 2.58–2.89 Å. In the third Tm3+ site, Tm3+ is bonded to five S2- atoms to form TmS5 trigonal bipyramids that share a cornercorner with one TmS6 octahedra, a cornercorner with one TmS5 square pyramid, a cornercorner with one TmS4 trigonal pyramid, and an edgeedge with one TmS6 pentagonal pyramid. The corner-sharing octahedral tilt angles are 39°. There are a spread of Tm–S bond distances ranging from 2.67–2.74 Å. In the fourth Tm3+ site, Tm3+ is bonded to four S2- atoms to form distorted TmS4 trigonal pyramids that share corners with two equivalent TmS6 octahedra, a cornercorner with one TmS5 square pyramid, an edgeedge with one TmS6 pentagonal pyramid, and an edgeedge with one TmS4 trigonal pyramid. The corner-sharing octahedra tilt angles range from 38–60°. There are a spread of Tm–S bond distances ranging from 2.50–2.75 Å. In the fifth Tm3+ site, Tm3+ is bonded to five S2- atoms to form distorted TmS5 square pyramids that share a cornercorner with one TmS6 octahedra, a cornercorner with one TmS5 trigonal bipyramid, corners with three TmS4 trigonal pyramids, and an edgeedge with one TmS6 octahedra. The corner-sharing octahedral tilt angles are 51°. There are a spread of Tm–S bond distances ranging from 2.61–2.81 Å. In the sixth Tm3+ site, Tm3+ is bonded to six S2- atoms to form distorted TmS6 pentagonal pyramids that share a cornercorner with one TmS6 octahedra, an edgeedge with one TmS5 trigonal bipyramid, and edges with two TmS4 trigonal pyramids. The corner-sharing octahedral tilt angles are 54°. There are a spread of Tm–S bond distances ranging from 2.68–2.90 Å. In the seventh Tm3+ site, Tm3+ is bonded in a distorted pentagonal planar geometry to five S2- atoms. There are a spread of Tm–S bond distances ranging from 2.70–2.84 Å. In the eighth Tm3+ site, Tm3+ is bonded to four S2- atoms to form TmS4 trigonal pyramids that share corners with two equivalent TmS5 square pyramids, a cornercorner with one TmS5 trigonal bipyramid, an edgeedge with one TmS6 octahedra, an edgeedge with one TmS6 pentagonal pyramid, and an edgeedge with one TmS4 trigonal pyramid. There are a spread of Tm–S bond distances ranging from 2.57–2.75 Å. There are four inequivalent Pb2+ sites. In the first Pb2+ site, Pb2+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Pb–S bond distances ranging from 2.71–3.59 Å. In the second Pb2+ site, Pb2+ is bonded in a 6-coordinate geometry to six S2- atoms. There are a spread of Pb–S bond distances ranging from 2.85–3.25 Å. In the third Pb2+ site, Pb2+ is bonded in a 7-coordinate geometry to seven S2- atoms. There are a spread of Pb–S bond distances ranging from 2.87–3.43 Å. In the fourth Pb2+ site, Pb2+ is bonded in a bent 150 degrees geometry to two S2- atoms. There are one shorter (2.80 Å) and one longer (3.01 Å) Pb–S bond lengths. There are sixteen inequivalent S2- sites. In the first S2- site, S2- is bonded in a distorted T-shaped geometry to three Tm3+ and one Pb2+ atom. In the second S2- site, S2- is bonded in a 1-coordinate geometry to one Tm3+, two Pb2+, and one S2- atom. The S–S bond length is 2.10 Å. In the third S2- site, S2- is bonded in a 2-coordinate geometry to two Tm3+, one Pb2+, and one S2- atom. In the fourth S2- site, S2- is bonded in a 2-coordinate geometry to two Tm3+, one Pb2+, and one S2- atom. The S–S bond length is 2.12 Å. In the fifth S2- site, S2- is bonded in a 3-coordinate geometry to three Tm3+ and one Pb2+ atom. In the sixth S2- site, S2- is bonded in a 4-coordinate geometry to one Tm3+ and three Pb2+ atoms. In the seventh S2- site, S2- is bonded in a 5-coordinate geometry to three Tm3+ and two Pb2+ atoms. In the eighth S2- site, S2- is bonded to three Tm3+ and one Pb2+ atom to form distorted corner-sharing STm3Pb trigonal pyramids. In the ninth S2- site, S2- is bonded in a 4-coordinate geometry to four Tm3+ and one Pb2+ atom. In the tenth S2- site, S2- is bonded in a distorted bent 120 degrees geometry to two Tm3+ and two Pb2+ atoms. In the eleventh S2- site, S2- is bonded in a 4-coordinate geometry to two Tm3+ and two Pb2+ atoms. In the twelfth S2- site, S2- is bonded in a 3-coordinate geometry to three Tm3+ and one Pb2+ atom. In the thirteenth S2- site, S2- is bonded in a 3-coordinate geometry to three Tm3+ and two Pb2+ atoms. In the fourteenth S2- site, S2- is bonded in a 1-coordinate geometry to one Tm3+, two Pb2+, and one S2- atom. In the fifteenth S2- site, S2- is bonded in a 3-coordinate geometry to three Tm3+ and one Pb2+ atom. In the sixteenth S2- site, S2- is bonded to four Tm3+ atoms to form distorted corner-sharing STm4 trigonal pyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tm5Sb3 by Materials Project

Tm5Sb3 crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. there are two inequivalent Tm sites. In the first Tm site, Tm is bonded in a 6-coordinate geometry to six equivalent Sb atoms. All Tm–Sb bond lengths are 3.12 Å. In the second Tm site, Tm is bonded in a 5-coordinate geometry to five equivalent Sb atoms. There are a spread of Tm–Sb bond distances ranging from 3.04–3.41 Å. Sb is bonded in a 9-coordinate geometry to nine Tm atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tm5Ge3 by Materials Project

Tm5Ge3 crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. there are two inequivalent Tm sites. In the first Tm site, Tm is bonded in a 6-coordinate geometry to six equivalent Ge atoms. All Tm–Ge bond lengths are 3.02 Å. In the second Tm site, Tm is bonded in a 3-coordinate geometry to five equivalent Ge atoms. There are a spread of Tm–Ge bond distances ranging from 2.89–3.40 Å. Ge is bonded in a 9-coordinate geometry to nine Tm atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tm5Ir3 by Materials Project

Tm5Ir3 crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. there are two inequivalent Tm sites. In the first Tm site, Tm is bonded in a 6-coordinate geometry to six equivalent Ir atoms. All Tm–Ir bond lengths are 2.98 Å. In the second Tm site, Tm is bonded in a 5-coordinate geometry to five equivalent Ir atoms. There are a spread of Tm–Ir bond distances ranging from 2.83–3.21 Å. Ir is bonded in a 9-coordinate geometry to nine Tm atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tm3Pt by Materials Project

Tm3Pt is Cementite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Tm sites. In the first Tm site, Tm is bonded in a 2-coordinate geometry to three equivalent Pt atoms. There are a spread of Tm–Pt bond distances ranging from 2.83–3.32 Å. In the second Tm site, Tm is bonded in a distorted bent 120 degrees geometry to two equivalent Pt atoms. There are one shorter (2.78 Å) and one longer (2.85 Å) Tm–Pt bond lengths. Pt is bonded in a 6-coordinate geometry to eight Tm atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tm2Pt by Materials Project

Tm2Pt is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Tm sites. In the first Tm site, Tm is bonded to four equivalent Pt atoms to form a mixture of edge and corner-sharing TmPt4 tetrahedra. There are a spread of Tm–Pt bond distances ranging from 2.86–2.92 Å. In the second Tm site, Tm is bonded in a 3-coordinate geometry to three equivalent Pt atoms. There are one shorter (2.80 Å) and two longer (3.03 Å) Tm–Pt bond lengths. Pt is bonded in a 7-coordinate geometry to seven Tm atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tm3C4 by Materials Project

Tm3C4 crystallizes in the tetragonal P4/mnc space group. The structure is three-dimensional. there are four inequivalent Tm3+ sites. In the first Tm3+ site, Tm3+ is bonded to six C+2.25- atoms to form TmC6 octahedra that share corners with two equivalent TmC6 octahedra, corners with four equivalent TmC7 pentagonal bipyramids, and edges with four equivalent TmC7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 0°. There are two shorter (2.48 Å) and four longer (2.56 Å) Tm–C bond lengths. In the second Tm3+ site, Tm3+ is bonded to six C+2.25- atoms to form TmC6 octahedra that share a cornercorner with one TmC6 octahedra and edges with four equivalent TmC7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 0°. There are a spread of Tm–C bond distances ranging from 2.30–2.58 Å. In the third Tm3+ site, Tm3+ is bonded to seven C+2.25- atoms to form distorted TmC7 pentagonal bipyramids that share a cornercorner with one TmC6 octahedra, corners with two equivalent TmC7 pentagonal bipyramids, edges with three TmC6 octahedra, edges with two equivalent TmC7 pentagonal bipyramids, and faces with two equivalent TmC7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 1°. There are a spread of Tm–C bond distances ranging from 2.45–2.71 Å. In the fourth Tm3+ site, Tm3+ is bonded in a 7-coordinate geometry to seven C+2.25- atoms. There are a spread of Tm–C bond distances ranging from 2.31–2.80 Å. There are nine inequivalent C+2.25- sites. In the first C+2.25- site, C+2.25- is bonded to six Tm3+ atoms to form CTm6 octahedra that share corners with nine CTm6 octahedra and edges with eight CTm5C octahedra. The corner-sharing octahedra tilt angles range from 0–84°. In the second C+2.25- site, C+2.25- is bonded to six Tm3+ atoms to form a mixture of corner and edge-sharing CTm6 octahedra. The corner-sharing octahedral tilt angles are 0°. Both C–Tm bond lengths are 2.31 Å. In the third C+2.25- site, C+2.25- is bonded to six Tm3+ atoms to form a mixture of corner and edge-sharing CTm6 octahedra. The corner-sharing octahedral tilt angles are 0°. In the fourth C+2.25- site, C+2.25- is bonded to six Tm3+ atoms to form a mixture of corner and edge-sharing CTm6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are a spread of C–Tm bond distances ranging from 2.31–2.58 Å. In the fifth C+2.25- site, C+2.25- is bonded to six Tm3+ atoms to form a mixture of corner and edge-sharing CTm6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are a spread of C–Tm bond distances ranging from 2.31–2.58 Å. In the sixth C+2.25- site, C+2.25- is bonded to six Tm3+ atoms to form a mixture of corner and edge-sharing CTm6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are a spread of C–Tm bond distances ranging from 2.31–2.58 Å. In the seventh C+2.25- site, C+2.25- is bonded to five Tm3+ and one C+2.25- atom to form a mixture of corner and edge-sharing CTm5C octahedra. The corner-sharing octahedra tilt angles range from 3–84°. The C–C bond length is 1.35 Å. In the eighth C+2.25- site, C+2.25- is bonded in a 2-coordinate geometry to four equivalent Tm3+ and two equivalent C+2.25- atoms. In the ninth C+2.25- site, C+2.25- is bonded in a 6-coordinate geometry to five Tm3+ and one C+2.25- atom. The C–C bond length is 1.31 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tm5Pt3 by Materials Project

Tm5Pt3 crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. there are two inequivalent Tm sites. In the first Tm site, Tm is bonded in a 6-coordinate geometry to six equivalent Pt atoms. All Tm–Pt bond lengths are 3.00 Å. In the second Tm site, Tm is bonded in a 5-coordinate geometry to five equivalent Pt atoms. There are a spread of Tm–Pt bond distances ranging from 2.88–3.25 Å. Pt is bonded in a 9-coordinate geometry to nine Tm atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TmB2Ir3 by Materials Project

TmIr3B2 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Tm is bonded in a 12-coordinate geometry to two equivalent Tm, twelve equivalent Ir, and six equivalent B atoms. Both Tm–Tm bond lengths are 3.14 Å. All Tm–Ir bond lengths are 3.15 Å. All Tm–B bond lengths are 3.15 Å. Ir is bonded in a distorted square co-planar geometry to four equivalent Tm and four equivalent B atoms. All Ir–B bond lengths are 2.22 Å. B is bonded in a 6-coordinate geometry to three equivalent Tm and six equivalent Ir atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tm2Au by Materials Project

Tm2Au is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Tm sites. In the first Tm site, Tm is bonded to four equivalent Au atoms to form a mixture of edge and corner-sharing TmAu4 tetrahedra. There are a spread of Tm–Au bond distances ranging from 2.87–3.00 Å. In the second Tm site, Tm is bonded in a 3-coordinate geometry to five equivalent Au atoms. There are a spread of Tm–Au bond distances ranging from 2.94–3.53 Å. Au is bonded in a 9-coordinate geometry to nine Tm atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tm5Si3 by Materials Project

Tm5Si3 crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. there are two inequivalent Tm sites. In the first Tm site, Tm is bonded in a 6-coordinate geometry to six equivalent Si atoms. All Tm–Si bond lengths are 2.99 Å. In the second Tm site, Tm is bonded in a 3-coordinate geometry to five equivalent Si atoms. There are a spread of Tm–Si bond distances ranging from 2.87–3.37 Å. Si is bonded in a 9-coordinate geometry to nine Tm atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Cs2TmCl5O by Materials Project

Cs2TmOCl5 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Cs is bonded in a 9-coordinate geometry to nine Cl atoms. There are a spread of Cs–Cl bond distances ranging from 3.56–4.13 Å. Tm is bonded in a distorted octahedral geometry to one O and five Cl atoms. The Tm–O bond length is 2.24 Å. There are a spread of Tm–Cl bond distances ranging from 2.57–2.73 Å. O is bonded in a single-bond geometry to one Tm and one Cl atom. The O–Cl bond length is 2.42 Å. There are four inequivalent Cl sites. In the first Cl site, Cl is bonded in a distorted single-bond geometry to four equivalent Cs and one Tm atom. In the second Cl site, Cl is bonded in a 3-coordinate geometry to four equivalent Cs, one Tm, and one O atom. In the third Cl site, Cl is bonded in a distorted single-bond geometry to three equivalent Cs and one Tm atom. In the fourth Cl site, Cl is bonded in a distorted single-bond geometry to four equivalent Cs and one Tm atom.

36 MATERIALS SCIENCE↗