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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on HC by Materials Project

CH crystallizes in the monoclinic C2/m space group. The structure is zero-dimensional and consists of four isobutene molecules. there are three inequivalent C sites. In the first C site, C is bonded in a trigonal planar geometry to three C atoms. There is two shorter (1.40 Å) and one longer (1.51 Å) C–C bond length. In the second C site, C is bonded in a distorted water-like geometry to one C and two equivalent H atoms. Both C–H bond lengths are 1.10 Å. In the third C site, C is bonded in a distorted single-bond geometry to one C and one H atom. The C–H bond length is 1.09 Å. There are two inequivalent H sites. In the first H site, H is bonded in a single-bond geometry to one C atom. In the second H site, H is bonded in a single-bond geometry to one C atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HC3 by Materials Project

C3H crystallizes in the triclinic P1 space group. The structure is one-dimensional and consists of one C3H ribbon oriented in the (1, 0, 0) direction. there are six inequivalent C+0.33- sites. In the first C+0.33- site, C+0.33- is bonded in a distorted single-bond geometry to two equivalent C+0.33- and one H1+ atom. Both C–C bond lengths are 1.41 Å. The C–H bond length is 1.09 Å. In the second C+0.33- site, C+0.33- is bonded in a distorted single-bond geometry to two equivalent C+0.33- and one H1+ atom. Both C–C bond lengths are 1.41 Å. The C–H bond length is 1.09 Å. In the third C+0.33- site, C+0.33- is bonded in a trigonal planar geometry to three C+0.33- atoms. The C–C bond length is 1.45 Å. In the fourth C+0.33- site, C+0.33- is bonded in a trigonal planar geometry to three C+0.33- atoms. Both C–C bond lengths are 1.42 Å. In the fifth C+0.33- site, C+0.33- is bonded in a trigonal planar geometry to three C+0.33- atoms. The C–C bond length is 1.45 Å. In the sixth C+0.33- site, C+0.33- is bonded in a trigonal planar geometry to three C+0.33- atoms. There are two inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one C+0.33- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one C+0.33- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HC6 by Materials Project

C6H crystallizes in the triclinic P-1 space group. The structure is one-dimensional and consists of one C6H ribbon oriented in the (1, 0, 0) direction. there are six inequivalent C+0.17- sites. In the first C+0.17- site, C+0.17- is bonded in a trigonal planar geometry to three C+0.17- atoms. There are a spread of C–C bond distances ranging from 1.40–1.44 Å. In the second C+0.17- site, C+0.17- is bonded in a trigonal planar geometry to three C+0.17- atoms. There are a spread of C–C bond distances ranging from 1.42–1.44 Å. In the third C+0.17- site, C+0.17- is bonded in a trigonal planar geometry to three C+0.17- atoms. There is two shorter (1.42 Å) and one longer (1.43 Å) C–C bond length. In the fourth C+0.17- site, C+0.17- is bonded in a distorted single-bond geometry to two equivalent C+0.17- and one H1+ atom. The C–H bond length is 1.09 Å. In the fifth C+0.17- site, C+0.17- is bonded in a trigonal planar geometry to three C+0.17- atoms. In the sixth C+0.17- site, C+0.17- is bonded in a trigonal planar geometry to three C+0.17- atoms. H1+ is bonded in a single-bond geometry to one C+0.17- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on H2C3 by Materials Project

C3H2 crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of four 2,3-dimethyl-1,3-butadiene molecules. there are three inequivalent C+0.67- sites. In the first C+0.67- site, C+0.67- is bonded in a distorted single-bond geometry to one C+0.67- and one H1+ atom. The C–C bond length is 1.41 Å. The C–H bond length is 1.09 Å. In the second C+0.67- site, C+0.67- is bonded in a distorted single-bond geometry to one C+0.67- and one H1+ atom. The C–C bond length is 1.41 Å. The C–H bond length is 1.09 Å. In the third C+0.67- site, C+0.67- is bonded in a trigonal planar geometry to three C+0.67- atoms. The C–C bond length is 1.48 Å. H1+ is bonded in a single-bond geometry to one C+0.67- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on H4C by Materials Project

CH4 is Silicon tetrafluoride structured and crystallizes in the cubic I-43m space group. The structure is zero-dimensional and consists of two methane molecules. C4- is bonded in a tetrahedral geometry to four equivalent H1+ atoms. All C–H bond lengths are 1.10 Å. H1+ is bonded in a single-bond geometry to one C4- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on H4C7 by Materials Project

C7H4 crystallizes in the monoclinic P2_1 space group. The structure is zero-dimensional and consists of two 1,1'-(1,8-naphthylene)bispyrene molecules. there are forty-two inequivalent C+0.57- sites. In the first C+0.57- site, C+0.57- is bonded in a distorted single-bond geometry to two C+0.57- and one H1+ atom. There is one shorter (1.37 Å) and one longer (1.44 Å) C–C bond length. The C–H bond length is 1.09 Å. In the second C+0.57- site, C+0.57- is bonded in a trigonal planar geometry to three C+0.57- atoms. There is one shorter (1.42 Å) and one longer (1.44 Å) C–C bond length. In the third C+0.57- site, C+0.57- is bonded in a trigonal planar geometry to three C+0.57- atoms. There are a spread of C–C bond distances ranging from 1.39–1.50 Å. In the fourth C+0.57- site, C+0.57- is bonded in a distorted single-bond geometry to one C+0.57- and one H1+ atom. The C–H bond length is 1.09 Å. In the fifth C+0.57- site, C+0.57- is bonded in a distorted single-bond geometry to one C+0.57- and one H1+ atom. The C–C bond length is 1.37 Å. The C–H bond length is 1.09 Å. In the sixth C+0.57- site, C+0.57- is bonded in a distorted trigonal planar geometry to two C+0.57- and one H1+ atom. The C–C bond length is 1.42 Å. The C–H bond length is 1.09 Å. In the seventh C+0.57- site, C+0.57- is bonded in a trigonal planar geometry to three C+0.57- atoms. There is one shorter (1.42 Å) and one longer (1.45 Å) C–C bond length. In the eighth C+0.57- site, C+0.57- is bonded in a distorted trigonal planar geometry to two C+0.57- and one H1+ atom. The C–C bond length is 1.37 Å. The C–H bond length is 1.09 Å. In the ninth C+0.57- site, C+0.57- is bonded in a distorted trigonal planar geometry to two C+0.57- and one H1+ atom. The C–C bond length is 1.41 Å. The C–H bond length is 1.09 Å. In the tenth C+0.57- site, C+0.57- is bonded in a distorted trigonal planar geometry to two C+0.57- and one H1+ atom. The C–C bond length is 1.39 Å. The C–H bond length is 1.09 Å. In the eleventh C+0.57- site, C+0.57- is bonded in a trigonal planar geometry to three C+0.57- atoms. There is one shorter (1.45 Å) and one longer (1.50 Å) C–C bond length. In the twelfth C+0.57- site, C+0.57- is bonded in a trigonal planar geometry to three C+0.57- atoms. In the thirteenth C+0.57- site, C+0.57- is bonded in a trigonal planar geometry to three C+0.57- atoms. There is one shorter (1.40 Å) and one longer (1.42 Å) C–C bond length. In the fourteenth C+0.57- site, C+0.57- is bonded in a distorted single-bond geometry to one C+0.57- and one H1+ atom. The C–H bond length is 1.09 Å. In the fifteenth C+0.57- site, C+0.57- is bonded in a distorted single-bond geometry to one C+0.57- and one H1+ atom. The C–C bond length is 1.40 Å. The C–H bond length is 1.09 Å. In the sixteenth C+0.57- site, C+0.57- is bonded in a trigonal planar geometry to three C+0.57- atoms. There is one shorter (1.43 Å) and one longer (1.44 Å) C–C bond length. In the seventeenth C+0.57- site, C+0.57- is bonded in a trigonal planar geometry to three C+0.57- atoms. There is one shorter (1.43 Å) and one longer (1.44 Å) C–C bond length. In the eighteenth C+0.57- site, C+0.57- is bonded in a distorted single-bond geometry to one C+0.57- and one H1+ atom. The C–H bond length is 1.09 Å. In the nineteenth C+0.57- site, C+0.57- is bonded in a distorted single-bond geometry to one C+0.57- and one H1+ atom. The C–C bond length is 1.43 Å. The C–H bond length is 1.09 Å. In the twentieth C+0.57- site, C+0.57- is bonded in a trigonal planar geometry to three C+0.57- atoms. There is one shorter (1.41 Å) and one longer (1.43 Å) C–C bond length. In the twenty-first C+0.57- site, C+0.57- is bonded in a trigonal planar geometry to three C+0.57- atoms. The C–C bond length is 1.43 Å. In the twenty-second C+0.57- site, C+0.57- is bonded in a distorted trigonal planar geometry to two C+0.57- and one H1+ atom. The C–C bond length is 1.40 Å. The C–H bond length is 1.09 Å. In the twenty-third C+0.57- site, C+0.57- is bonded in a distorted single-bond geometry to one C+0.57- and one H1+ atom. The C–H bond length is 1.09 Å. In the twenty-fourth C+0.57- site, C+0.57- is bonded in a distorted single-bond geometry to one C+0.57- and one H1+ atom. The C–C bond length is 1.41 Å. The C–H bond length is 1.09 Å. In the twenty-fifth C+0.57- site, C+0.57- is bonded in a trigonal planar geometry to three C+0.57- atoms. The C–C bond length is 1.43 Å. In the twenty-sixth C+0.57- site, C+0.57- is bonded in a distorted single-bond geometry to one C+0.57- and one H1+ atom. The C–H bond length is 1.09 Å. In the twenty-seventh C+0.57- site, C+0.57- is bonded in a distorted single-bond geometry to one C+0.57- and one H1+ atom. The C–C bond length is 1.44 Å. The C–H bond length is 1.09 Å. In the twenty-eighth C+0.57- site, C+0.57- is bonded in a trigonal planar geometry to three C+0.57- atoms. In the twenty-ninth C+0.57- site, C+0.57- is bonded in a trigonal planar geometry to three C+0.57- atoms. The C–C bond length is 1.40 Å. In the thirtieth C+0.57- site, C+0.57- is bonded in a distorted single-bond geometry to two C+0.57- and one H1+ atom. The C–C bond length is 1.39 Å. The C–H bond length is 1.09 Å. In the thirty-first C+0.57- site, C+0.57- is bonded in a distorted trigonal planar geometry to two C+0.57- and one H1+ atom. The C–C bond length is 1.40 Å. The C–H bond length is 1.09 Å. In the thirty-second C+0.57- site, C+0.57- is bonded in a trigonal planar geometry to three C+0.57- atoms. Both C–C bond lengths are 1.43 Å. In the thirty-third C+0.57- site, C+0.57- is bonded in a trigonal planar geometry to three C+0.57- atoms. The C–C bond length is 1.43 Å. In the thirty-fourth C+0.57- site, C+0.57- is bonded in a distorted single-bond geometry to two C+0.57- and one H1+ atom. The C–C bond length is 1.37 Å. The C–H bond length is 1.09 Å. In the thirty-fifth C+0.57- site, C+0.57- is bonded in a distorted trigonal planar geometry to two C+0.57- and one H1+ atom. The C–C bond length is 1.43 Å. The C–H bond length is 1.09 Å. In the thirty-sixth C+0.57- site, C+0.57- is bonded in a trigonal planar geometry to three C+0.57- atoms. There is one shorter (1.41 Å) and one longer (1.43 Å) C–C bond length. In the thirty-seventh C+0.57- site, C+0.57- is bonded in a trigonal planar geometry to three C+0.57- atoms. The C–C bond length is 1.43 Å. In the thirty-eighth C+0.57- site, C+0.57- is bonded in a distorted trigonal planar geometry to two C+0.57- and one H1+ atom. The C–C bond length is 1.40 Å. The C–H bond length is 1.09 Å. In the thirty-ninth C+0.57- site, C+0.57- is bonded in a distorted single-bond geometry to one C+0.57- and one H1+ atom. The C–H bond length is 1.09 Å. In the fortieth C+0.57- site, C+0.57- is bonded in a distorted single-bond geometry to one C+0.57- and one H1+ atom. The C–C bond length is 1.41 Å. The C–H bond length is 1.09 Å. In the forty-first C+0.57- site, C+0.57- is bonded in a trigonal planar geometry to three C+0.57- atoms. The C–C bond length is 1.43 Å. In the forty-second C+0.57- site, C+0.57- is bonded in a distorted trigonal planar geometry to two C+0.57- and one H1+ atom. The C–H bond length is 1.09 Å. There are twenty-four inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the seventh H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the eighth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the ninth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the tenth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the eleventh H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the twelfth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the thirteenth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the fourteenth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the fifteenth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the sixteenth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the seventeenth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the eighteenth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the nineteenth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the twentieth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the twenty-first H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the twenty-second H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the twenty-third H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the twenty-fourth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on H8C5 by Materials Project

(CH)2(CH2)3 crystallizes in the tetragonal P-42_1c space group. The structure is zero-dimensional and consists of eight methane molecules and twelve methane molecules.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HC by Materials Project

CH is Cubane-like structured and crystallizes in the trigonal P-3m1 space group. The structure is zero-dimensional and consists of two methane molecules. C is bonded in a distorted single-bond geometry to one H atom. The C–H bond length is 1.11 Å. H is bonded in a single-bond geometry to one C atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HC by Materials Project

CH is Cubane-like structured and crystallizes in the cubic I2_13 space group. The structure is zero-dimensional and consists of eight methane molecules. C is bonded in a single-bond geometry to one H atom. The C–H bond length is 1.09 Å. H is bonded in a single-bond geometry to one C atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on H34C19 by Materials Project

(CH3)3(CH2)7(CH)4C5H7 crystallizes in the monoclinic P2_1 space group. The structure is zero-dimensional and consists of eight methane molecules, fourteen methane molecules, six methane molecules, and two neopentane molecules.

36 MATERIALS SCIENCE↗
DOE OSTI2025

Superclustering with the Atacama Cosmology Telescope and Dark Energy Survey. II. Anisotropic Large-scale Coherence in Hot Gas, Galaxies, and Dark Matter

Statistics that capture the directional dependence of the baryon distribution in the cosmic web enable unique tests of cosmology and astrophysical feedback. We use constrained oriented stacking of thermal Sunyaev–Zel’dovich (tSZ) maps to measure the anisotropic distribution of hot gas 2.5–40 Mpc away from galaxy clusters embedded in massive filaments and superclusters. The cluster selection and orientation (at a scale of ∼15 Mpc) use Dark Energy Survey (DES) Year 3 data, while expanded tSZ maps from the Atacama Cosmology Telescope Data Release 6 enable a ∼3× more significant measurement of the extended gas compared to the technique’s proof-of-concept. Decomposing stacks into cosine multipoles of order m , we detect a dipole ( m = 1) and quadrupole ( m = 2) at 8σ–10σ, as well as evidence for m = 4 signal at up to 6σ, indicating sensitivity to late-time non-Gaussianity. We compare to Cardinal simulations with spherical gas models pasted onto dark matter halos. The fiducial tSZ data can discriminate between two models that deplete pressure differently in low-mass halos (mimicking astrophysical feedback), preferring higher average pressure in extended structures. However, uncertainty in the amount of cosmic infrared background contamination reduces the constraining power. Additionally, we apply the technique to DES galaxy density and weak lensing to study for the first time their oriented relationships with tSZ. In the tSZ-to-lensing relation, averaged on 7.5 Mpc (transverse) scales, we observe dependence on redshift but not shape or radial distance. Thus, on large scales, the superclustering of gas pressure, galaxies, and total matter is coherent in shape and extent.

79 ASTRONOMY AND ASTROPHYSICS↗