scholarly journals Crystal structure of 2-cyano-1-methylpyridinium perchlorate

2015 ◽  
Vol 71 (11) ◽  
pp. o852-o853
Author(s):  
Vu D. Nguyen ◽  
Cameron A. McCormick ◽  
Joel T. Mague ◽  
Lynn V. Koplitz
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Solid State ◽  
Three Dimensional ◽  
Asymmetric Unit ◽  
State Structure ◽  
Solid State Structure ◽  
Pyridinium Perchlorate

The asymmetric unit of the title salt, C7H7N2+·ClO4−, comprises two independent formula units. The solid-state structure comprises corrugated layers of cations and of anions, approximately parallel to (010). The supramolecular layers are stabilized and connected by C—H...O hydrogen bonding to consolidate a three-dimensional architecture. A close pyridinium–perchlorate N...O contact [2.867 (5) Å] is noted. The crystal was refined as an inversion twin.

scholarly journals Crystal structure of 2-cyano-1-methylpyridinium tetrafluoroborate

2015 ◽  
Vol 71 (10) ◽  
pp. o697-o698 ◽  
Author(s):  
Francesca A. Vaccaro ◽  
Lynn V. Koplitz ◽  
Joel T. Mague
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Solid State ◽  
Three Dimensional ◽  
Asymmetric Unit ◽  
State Structure ◽  
Solid State Structure ◽  
Two Component

The asymmetric unit of the title salt, C7H7N2+·BF4−, comprises two independent but nearly identical formula units. The solid-state structure comprises corrugated layers of cations and anions, formed by C—H...F hydrogen bonding, that are approximately parallel to (010). Further C—H...F hydrogen bonding consolidates the three-dimensional architecture. The sample was refined as a two-component non-merohedral twin.

scholarly journals Solid-state structure and electronic states of hydrogen-bonded dimer of pyridyl-substituted tetrathiafulvalene salted with PF6−

RSC Advances ◽  
2017 ◽  
Vol 7 (11) ◽  
pp. 6236-6241 ◽  
Author(s):  
Tomoaki Kanetou ◽  
Ryo Tsunashima ◽  
Norihisa Hoshino ◽  
Tomoyuki Akutagawa
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Dipole Moment ◽  
Solid State ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Electronic States ◽  
Electronic Systems ◽  
State Structure ◽  
Solid State Structure

Our results clarified uniqueness in hydrogen bonding TTFPy dimer in which proton in hydrogen bond was thermally fluctuated. In addition, the fluctuation was coupled with π-electronic systems of TTF moiety where electric dipole moment was amplified.

Calcium nickel orthophosphate: crystal structure of Ca8.5Ni9.5(PO4)12

1995 ◽  
Vol 210 (11) ◽  
Author(s):  
B. Elbali ◽  
A. Boukhari ◽  
E. M. Holt ◽  
J. Aride
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
State Structure ◽  
Solid State Structure ◽  
Orthophosphate Crystal

AbstractA calcium nickel orthophosphate complex has been isolated and shown to display a solid state structure similar to that of

Intermolecular hydrogen-bonding in the solid-state structure of CpFe(CN)2(PTAH)

2003 ◽  
Vol 666 (1-2) ◽  
pp. 49-53 ◽  
Author(s):  
Donald J Darensbourg ◽  
Andrea L Phelps ◽  
M.Jason Adams ◽  
Jason C Yarbrough
Keyword(s):  
Hydrogen Bonding ◽  
Solid State ◽  
Intermolecular Hydrogen Bonding ◽  
State Structure ◽  
Solid State Structure

Tetrakis(phenylethynyl)tin(IV)

2007 ◽  
Vol 63 (11) ◽  
pp. m2762-m2762 ◽  
Author(s):  
Mohammed Lahcini ◽  
Minna T. Räisänen ◽  
Pascal M. Castro ◽  
Martti Klinga ◽  
Markku Leskelä
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Title Compound ◽  
Triple Bond ◽  
Three Dimensional ◽  
Asymmetric Unit ◽  
Tetrahedral Symmetry ◽  
Acetylenic Bond ◽  
Dimensional Network ◽  
Phenyl Proton

The asymmetric unit of the crystal structure of the title compound, [Sn(C8H5)4], consists of one fourth of a discrete tin complex and one half of another which both possess nearly ideal tetrahedral symmetry; the site symmetries of the two Sn atoms are \overline4 and 2. The bond angles at all acetylide C atoms are almost linear. The Sn—C distances [2.076 (6) and 2.065 (6)–2.069 (6) Å in the two complexes) are short when compared to the sum of the covalent radii of C and Sn (2.177 Å), but consistent with another tetrakis(alkynyl)tin complex. The acetylenic bond distances [1.196 (7) and 1.183 (7)–1.207 (7) Å] are consistent with a triple C[triple-bond]C bond. Therefore, despite the short Sn—C distances, the ligands are mainly σ-bonded to the metal. In the solid state, these complexes form a three-dimensional network via agostic C—H interactions as a phenyl proton in the ortho position interacts with the acetylenic carbon in the α position to the tin center.

scholarly journals Crystal structure of the thalidomide analog (3aR*,7aS*)-2-(2,6-dioxopiperidin-3-yl)hexahydro-1H-isoindole-1,3(2H)-dione

2018 ◽  
Vol 74 (11) ◽  
pp. 1595-1598 ◽  
Author(s):  
Yousef Hijji ◽  
Ellis Benjamin ◽  
Jerry P. Jasinski ◽  
Ray J. Butcher
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Aromatic Ring ◽  
Title Compound ◽  
Reciprocal Lattice ◽  
Three Dimensional ◽  
Racemic Mixture ◽  
Asymmetric Unit ◽  
Compound C ◽  
Graph Set

The title compound, C13H16N2O4, crystallizes in the monoclinic centrosymmetric space group, P21/c, with four molecules in the asymmetric unit, thus there is no crystallographically imposed symmetry and it is a racemic mixture. The structure consists of a six-membered unsaturated ring bound to a five-membered pyrrolidine-2,5-dione ring N-bound to a six-membered piperidine-2,6-dione ring and thus has the same basic skeleton as thalidomide, except for the six-membered unsaturated ring substituted for the aromatic ring. In the crystal, the molecules are linked into inversion dimers by R 2 2(8) hydrogen bonding involving the N—H group. In addition, there are bifurcated C—H...O interactions involving one of the O atoms on the pyrrolidine-2,5-dione with graph-set notation R 1 2(5). These interactions along with C—H...O interactions involving one of the O atoms on the piperidine-2,6-dione ring link the molecules into a complex three-dimensional array. There is pseudomerohedral twinning present which results from a 180° rotation about the [100] reciprocal lattice direction and with a twin law of 1 0 0 0 \overline{1} 0 0 0 \overline{1} [BASF 0.044 (1)].

scholarly journals Synthesis and crystal structure of poly[(3-amino-1,2,4-triazole)(μ3-1H-benzimidazole-5,6-dicarboxylato)cobalt(II)]

2021 ◽  
Vol 77 (7) ◽  
pp. 714-717
Author(s):  
Chen Zhao ◽  
Yi Li ◽  
Jin-Sheng Xiao ◽  
Peng-Dan Zhang ◽  
Xue-Qian Wu ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Three Dimensional ◽  
Chain Structure ◽  
Asymmetric Unit ◽  
Straight Chain ◽  
Tetrahedral Geometry ◽  
Synthesis And Crystal Structure ◽  
One Dimensional ◽  
Hydrogen Bonding Interactions

The asymmetric unit of the title coordination polymer, [Co(C9H4N2O4)(C2H4N4)] n or [Co(L 1)(L 2)] n , consists of one crystallographically independent Co2+ centre, one L 1 2− ligand and one L 2 ligand (L 1 = 1H-benzimidazole-5,6-dicarboxylic acid, L 2 = 3-amino-1,2,4-triazole). The Co2+ centre is coordinated by two carboxylato-O atoms from two independent L 1 2− ligands and two nitrogen atoms from L 2 and another L 1 ligand. Thus, the metal center adopts a four-coordinate mode, forming a tetrahedral geometry. Interestingly, through the combination of two L 1 2−, two L 2 ligands and two Co2+ ions, a basic repeating unit is constructed, resulting in the formation of a one-dimensional straight chain structure. These chains are further expanded to the final three-dimensional framework via N—H...O hydrogen-bonding interactions.

An untethered C3v-symmetric triarylphosphine oxide locked by intermolecular hydrogen bonding

2019 ◽  
Vol 55 (26) ◽  
pp. 3761-3764 ◽  
Author(s):  
Timothy G. Carroll ◽  
Camden Hunt ◽  
Rachel Garwick ◽  
Guang Wu ◽  
Roman Dobrovetsky ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Solid State ◽  
Intermolecular Hydrogen Bonding ◽  
State Structure ◽  
Solid State Structure

A C3v-symmetric triarylphosphine oxide locked into conformation by H-bonding and displaying an extended MOF-like solid-state structure is reported.

scholarly journals Crystal structure of strontium dinickel iron orthophosphate

2015 ◽  
Vol 71 (10) ◽  
pp. 1255-1258 ◽  
Author(s):  
Said Ouaatta ◽  
Abderrazzak Assani ◽  
Mohamed Saadi ◽  
Lahcen El Ammari
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Solid State Reaction ◽  
Title Compound ◽  
Three Dimensional ◽  
The Other ◽  
Asymmetric Unit ◽  
Space Group ◽  
Edge Sharing Octahedra ◽  
Wyckoff Position

The title compound, SrNi2Fe(PO4)3, synthesized by solid-state reaction, crystallizes in an ordered variant of the α-CrPO4structure. In the asymmetric unit, two O atoms are in general positions, whereas all others atoms are in special positions of the space groupImma: the Sr cation and one P atom occupy the Wyckoff position 4e(mm2), Fe is on 4b(2/m), Ni and the other P atom are on 8g(2), one O atom is on 8h(m) and the other on 8i(m). The three-dimensional framework of the crystal structure is built up by [PO4] tetrahedra, [FeO6] octahedra and [Ni2O10] dimers of edge-sharing octahedra, linked through common corners or edges. This structure comprises two types of layers stacked alternately along the [100] direction. The first layer is formed by edge-sharing octahedra ([Ni2O10] dimer) linked to [PO4] tetrahedraviacommon edges while the second layer is built up from a strontium row followed by infinite chains of alternating [PO4] tetrahedra and FeO6octahedra sharing apices. The layers are held together through vertices of [PO4] tetrahedra and [FeO6] octahedra, leading to the appearance of two types of tunnels parallel to thea- andb-axis directions in which the Sr cations are located. Each Sr cation is surrounded by eight O atoms.

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