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1.
Choudhury M. Zakaria George Ferguson Alan J. Lough Christopher Glidewell 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(8):914-917
In ferrocene‐1,1′‐diylbis(diphenylmethanol)–4,4′‐ethylenedipyridine (1/1), [Fe(C18H15O)2]·C12H12N2, there is an intramolecular O—H?O hydrogen bond in the ferrocenediol component and a single O—H?N hydrogen bond linking the two components into a finite monomeric adduct. Ferrocene‐1,1′‐diylbis(diphenylmethanol)–ethylenediamine (1/1), [Fe(C18H15O)2]·C2H8N2, crystallizes with Z′ = 2 in space group P, and there are two independent four‐component aggregates in the structure, both of which are centrosymmetric. In the first type of aggregate, the molecular components are linked by O—H?N and N—H?O hydrogen bonds, in which both diamine N atoms participate; in the second type of aggregate, the diamine component is disordered over two sets of sites, but only one N atom is involved in the hydrogen bonding. 相似文献
2.
Choudhury M. Zakaria George Ferguson Alan J. Lough Christopher Glidewell 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(1):m5-m7
In ferrocene‐1,1′‐diylbis(diphenylmethanol)–2,2′‐dipyridylamine (1/1), [Fe(C18H15O)2]·C10H9N3, (I), there is an intramolecular O—H?O hydrogen bond [H?O 2.03 Å, O?O 2.775 (2) Å and O—H?O 147°] in the ferrocenediol component, and the two neutral molecular components are linked by one O—H?N hydrogen bond [H?N 1.96 Å, O?N 2.755 (2) Å and O—H?N, 157°] and one N—H?O hydrogen bond [H?O 2.26 Å, N?O 3.112 (2) Å and N—H?O 164°] forming a cyclic R(8) motif. One of the pyridyl N atoms plays no part in the intermolecular hydrogen bonding, but participates in a short intramolecular C—H?N contact [H?N 2.31 Å, C?N 2.922 (2) Å and C—H?N 122°]. 相似文献
3.
Yao‐Cheng Shi Bei‐Bei Zhu Xiao‐Bi Jing 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(11):m559-m562
The molecules of N,N′‐bis(2‐pyridylmethyl)ferrocene‐1,1′‐diyldicarboxamide, [Fe(C12H11N2O)2], contain intramolecular N—H⋯N hydrogen bonds and are linked into sheets by three independent C—H⋯O hydrogen bonds. The molecules of the isomeric compound N,N′‐bis(3‐pyridylmethyl)ferrocene‐1,1′‐diyldicarboxamide lie across inversion centres, and the molecules are linked into sheets by a combination of N—H⋯N hydrogen bonds and π–π stacking interactions between pyridyl groups. 相似文献
4.
Graeme J. Gainsford Cornelis Lensink Joanne B. Hart Andrew Falshaw 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(11):1396-1398
The title compound, 3,4,5,6‐tetramethoxycyclohexane‐1,2‐diyldioxybis(methyldiphenylphosphonium) diiodide, C36H44O6P22+·2I?, was prepared from a New Zealand natural product, d ‐chiro‐inositol, in order to develop new catalytic metal complexes. The inositol ring retains its usual chair conformation with only minor perturbations caused by the bound diphenylmethylphosphines. Crystal‐packing forces are provided by C—H?I cation–anion interactions. 相似文献
5.
Katharine F. Bowes Christopher Glidewell John N. Low 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(7):o409-o415
The structure of tetrameric triphenylsilanol, C18H16OSi, (I), has been re‐investigated at 120 (2) K. The hydroxyl H atoms were readily located and one of the arene rings is disordered over two closely positioned sets of sites. The molecules are linked into cyclic tetramers, having approximate (S4) symmetry, via O—H?O hydrogen bonds [H?O 1.81–1.85 Å, O?O 2.634 (3)–2.693 (3) Å and O—H?O 156–166°]. At ambient temperature, there are indications of multiple disorder of the phenyl‐ring sites. In bis(triphenylsilanol) dimethyl sulfoxide solvate, 2C18H16OSi·C2H6OS, (II), the dimethyl sulfoxide component is disordered across a twofold rotation axis in C2/c, and the molecular components are linked by a single O—H?O hydrogen bond [H?O 1.85 Å, O?O 2.732 (2) Å and O—H?O 172°] into three‐molecule aggregates, which are themselves linked into a single three‐dimensional framework by two C—H?π(arene) interactions. In tetrakis(triphenylsilanol) 1,4‐dioxan solvate, 4C18H16OSi·C4H8O2, (III), the 1,4‐dioxan component lies across an inversion centre in space group P and centrosymmetric five‐molecule aggregates are linked by paired C—H?π(arene) interactions to form molecular ladders. 相似文献
6.
Nada Kouti‐Hulita Aleksandar Danilovski Miroslav Maleevi Marina Orei Miljenko Dumi 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(9):1144-1145
The 2,8‐dihydroxy‐1,3,7,9‐tetramethyl‐6,12‐dihydrodipyrido[1,2‐a:1′,2′‐d]pyrazinediylium dication possesses 2/m symmetry and lies in the mirror plane together with a chloride anion and the water O atom. The dication also lies on an inversion centre, i.e. C16H20N2O22+·2Cl?·2H2O. Due to these symmetry constrictions the dication adopts an unexpected planar conformation. Molecules are linked by O—H?O and O—H?Cl hydrogen bonds to form chains, which are cross‐connected by C—H?Cl attractive interactions forming a complex three‐dimensional hydrogen‐bond network. 相似文献
7.
Alexander Filippou Peter Portius Athanassios Philippopoulos Gabriele Kociok‐Khn Burkhard Ziemer 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(9):e378-e379
trans‐[MoCl2(dppe)2] [dppe is 1,2‐ethanediylbis(diphenylphosphine), C26H24P2] was obtained as a side product from the reaction of trans‐[Mo(dppe)2(N2)2] with Cp*GeCl to give the germylyne complex trans‐[Cl(dppe)2Mo[triple‐bond]Ge(η1‐Cp*)]. The crystal structures of the hemipentane (0.5C5H12) and ditetrahydrofuran (2C4H8O) solvates of trans‐[MoCl2(dppe)2], (IIIa) and (IIIb), respectively, have been determined. 相似文献
8.
Jo C. Davison Mark R. St J. Foreman R. Alan Howie M. John Plater Janet M. S. Skakle 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(6):690-693
The title compound, [NiCl2(C26H24P2)], has arisen as a result of the unexpected reduction (hydrogenation) of the trans‐1,2‐bis(diphenylphosphino)ethene ligand. The hydrothermal reaction conditions have produced a third polymorphic form of the compound which has twofold symmetry, crystallizes in an enantiomer‐selective manner and contains an unexpectedly short C—C (ethane) bond. Contacts of the form C—H?Cl are present, one involving alkyl and the other aryl hydrogen, with C?Cl distances of 3.556 (4) and 3.664 (6) Å, respectively. 相似文献
9.
Cengiz Arici Filiz Ercan Raif Kurtaran Orhan Atakol 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(7):812-814
In the title compounds, {2,2′‐[2,2‐dimethyl‐1,3‐propanediylbis(nitrilomethylidyne)]diphenolato‐κ4N,N′,O,O′}nickel(II), [Ni(C19H20N2O2)], and {2,2′‐[2,2‐dimethyl‐1,3‐propanediylbis(nitrilomethylidyne)]diphenolato‐κ4N,N′,O,O′}copper(II), [Cu(C19H20N2O2)], the NiII and CuII atoms are coordinated by two iminic N and two phenolic O atoms of the N,N′‐bis(salicylidene)‐2,2‐dimethyl‐1,3‐propanediaminate (SALPD2?, C17H16N2O22?) ligand. The geometry of the coordination sphere is planar in the case of the NiII complex and distorted towards tetrahedral for the CuII complex. Both complexes have a cis configuration imposed by the chelate ligand. The dihedral angles between the N/Ni/O and N/Cu/O coordination planes are 17.20 (6) and 35.13 (7)°, respectively. 相似文献
10.
Ramis Rao Subramanian Shanmuga S. Anandan Kuan Hiang Kwek Kum Sang Low S. Shanmuga Sundara Raj Hoong‐Kun Fun Ibrahim Abdul Razak John V. Hanna Seik Weng Ng 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(7):e292-e294
The monoclinic cell of dicyclohexylammonium 2,4‐dichlorophenoxyacetate contains four C12H24N+·C5H8Cl2O3? ion pairs. The ammonium N atom is hydrogen bonded to the oxygen ends of two carboxyl groups to form a 12‐membered O—C—O?HNH?O—C—O?HNH ring. In (2,4‐dichlorophenoxylacetato)bis(triphenylphosphine)silver(I), [Ag(C8H5Cl2O3)(C18H15P)2], the carboxyl CO2 unit chelates to the Ag atom in an anisobidentate manner [Ag—O = 2.436 (2) and 2.517 (2) Å]; the Ag atom shows distorted tetrahedral geometry. 相似文献
11.
Russell G. Baughman Kenneth L. Martin Rajendra K. Singh James O. Stoffer 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(2):o103-o106
In 2,4‐dihydroxybenzaldehyde 2,4‐dinitrophenylhydrazone N,N‐dimethylformamide solvate {or 4‐[(2,4‐dinitrophenyl)hydrazonomethyl]benzene‐1,3‐diol N,N‐dimethylformamide solvate}, C13H10N4O6·C3H7NO, (X), 2,4‐dihydroxyacetophenone 2,4‐dinitrophenylhydrazone N,N‐dimethylformamide solvate (or 4‐{1‐[(2,4‐dinitrophenyl)hydrazono]ethyl}benzene‐1,3‐diol N,N‐dimethylformamide solvate), C14H12N4O6·C3H7NO, (XI), and 2,4‐dihydroxybenzophenone 2,4‐dinitrophenylhydrazone N,N‐dimethylacetamide solvate (or 4‐{[(2,4‐dinitrophenyl)hydrazono]phenylmethyl}benzene‐1,3‐diol N,N‐dimethylacetamide solvate), C19H14N4O6·C4H9NO, (XII), the molecules all lack a center of symmetry, crystallize in centrosymmetric space groups and have been observed to exhibit non‐linear optical activity. In each case, the hydrazone skeleton is fairly planar, facilitated by the presence of two intramolecular hydrogen bonds and some partial N—N double‐bond character. Each molecule is hydrogen bonded to one solvent molecule. 相似文献
12.
Gregory Morin Maoyu Shang Bradley D. Smith 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(5):544-545
The title compound, [Ca(C16H12O4)(H2O)6]·H2O, adopts a conformation about the central C—C bond that places the two carboxylate groups in an anti orientation. The crystal consists of layers of two‐dimensional arrays of 2,3‐diphenylsuccinate dianions which are linked by bridging Ca2+ cations. The unit cell contains two Ca2+ cations in an unusual four‐membered Ca—O—Ca—O ring in which the bridging O atoms belong to water molecules rather than carboxylates, i.e. poly[[[di‐μ‐aqua‐bis[pentaaquacalcium(II)]]‐μ‐(meso‐2,3‐diphenylsuccinato‐O:O′)] succinate dihydrate]. 相似文献
13.
Takashiro Akitsu Yuiri Takeuchi Yasuaki Einaga 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(11):o801-o802
The title compound, (RS)‐3,5‐dichloro‐2‐{[(1‐phenylethyl)imino]methyl}phenol, C15H13Cl2NO, was synthesized from racemic 1‐phenylethylamine and 3,5‐dichlorosalicylaldehyde. The π‐conjugate system around the imine group is essentially planar in the phenol–imine tautomer. Intramolecular O⋯N hydrogen‐bond and intermolecular C—H⋯π interactions are present in the crystal structure. 相似文献
14.
Won Seok Han Soon W. Lee 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(4):m189-m190
In the title compound, azido‐2κN‐bis[μ‐(1η5:2κP)‐diphenylphosphinocyclopentadienyl][2(η5)‐pentamethylcyclopentadienyl]iron(III)rhodium(III) hexafluorophosphate, [{Rh(C10H15)(N3)}{Fe(μ‐C17H14P)2}]PF6 or [FeRh(C10H15)(μ‐C17H14P)2(N3)]PF6, the coordination sphere of RhIII can be described as pseudo‐tetrahedral, composed of two P atoms from a 1,1′‐bis(diphenylphosphino)ferrocene (dppf) ligand, an azido N atom and the centroid of the ring of a C5Me5 (Cp*) ligand. The two cyclopentadienyl rings in the dppf moiety adopt an eclipsed conformation. The Rh⋯Fe distance is 4.340 (2) Å. 相似文献
15.
Huai‐Gang Zhu Guang Yang Xiao‐Ming Chen Seik Weng Ng 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(10):e430-e431
Bridging by the two thiocyanato groups in centrosymmetric six‐coordinate bis(thiocyanato)bis(diphenylthiourea)cadmium(II) dihydrate leads tothe formation of eight‐membered [Cd—SCN→Cd—SCN→] rings that are linked at the metal atom to furnish chains running parallel to the a axis, i.e {[Cd(NCS)2(C13H12N2S)2]·2H2O}n. 相似文献
16.
Kevin A. Bunten David H. Farrar Alan J. Lough 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(6):e267-e267
The title compound, BINAP oxide, C44H32O2P2, (I), was synthesized by direct oxidation of (R)‐(+)‐2,2′‐bis(diphenylphosphino)‐1,1′‐binaphthyl (BINAP) with tert‐butyl hydroperoxide in toluene solution. The angle between the naphthyl planes of the binaphthyl group is 94.17 (3)°. 相似文献
17.
Peter D. W. Boyd Clifton E. F. Rickard Kingsley J. Cavell 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(1):e16-e18
The structures of a series of four‐coordinate nickel(II) complexes of the form [Ni(sacsac)L] PF6 (sacsac = pentane‐2,4‐dithione anion; L = (Ph2P)2(CH2)n, n = 1,2,3) have beendetermined. These are [bis(diphenylphosphino)methane](pentane‐2,4‐dithionato‐S,S′)nickel(II) hexafluorophosphate, [Ni(C25H22P2)(C5H7S2)]PF6, [1,2‐bis(diphenylphosphino)ethane](pentane‐2,4‐dithionato–S,S′)nickel(II) hexafluorophosphate, [Ni(C26H24P2)(C5H7S2)]PF6, and [1,3‐bis(diphenylphosphino)propane](pentane‐2,4‐dithionato‐S,S′)nickel(II) hexafluorophosphate, [Ni(C27H26P2)(C5H7S2)]PF6. All have a distorted square‐planar arrangement about Ni with angles around Ni varying with the length of the hydrocarbon chain. 相似文献
18.
Choudhury M. Zakaria George Ferguson Alan J. Lough Christopher Glidewell 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(4):o204-o208
The adduct 1,6‐diaminohexane–1,1,1‐tris(4‐hydroxyphenyl)ethane (1/2) is a salt {hexane‐1,6‐diyldiammonium–4‐[1,1‐bis(4‐hydroxyphenyl)ethyl]phenolate (1/2)}, C6H18N22+·2C20H17O3?, in which the cation lies across a centre of inversion in space group P. The anions are linked by two short O—H?O hydrogen bonds [H?O 1.74 and 1.76 Å, O?O 2.5702 (12) and 2.5855 (12) Å, and O—H?O 168 and 169°] into a chain containing two types of R(24) ring. Each cation is linked to four different anion chains by three N—H?O hydrogen bonds [H?O 1.76–2.06 Å, N?O 2.6749 (14)–2.9159 (14) Å and N—H?O 156–172°]. In the adduct 2,2′‐bipyridyl–1,1,1‐tris(4‐hydroxyphenyl)ethane (1/2), C10H8N2·2C20H18O3, the neutral diamine lies across a centre of inversion in space group P21/n. The tris(phenol) molecules are linked by two O—H?O hydrogen bonds [H?O both 1.90 Å, O?O 2.7303 (14) and 2.7415 (15) Å, and O—H?O 173 and 176°] into sheets built from R(38) rings. Pairs of tris(phenol) sheets are linked via the diamine by means of a single O—H?N hydrogen bond [H?N 1.97 Å, O?N 2.7833 (16) Å and O—H?N 163°]. 相似文献
19.
Andrew Bond William Jones 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(4):436-437
The title compound, [Mg(C5H4NOS)2(H2O)2]·C10H8N2O2S2, is a two‐component host–guest material. The 2,2′‐dithiobis(pyridine N‐oxide) molecule has crystallographic twofold symmetry. The metal complex lies on an inversion centre and associates via C—H?S interactions into chains which thread the 2,2′‐dithiobis(pyridine N‐oxide) lattice in perpendicular directions. Hydrogen bonds exist between the water molecules of the diaquamagnesium units and the N—O groups of the host lattice. 相似文献
20.
Ayhan Elmali C. Tugrul Zeyrek YalcÛn Elerman Ingrid Svoboda 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(11):1302-1304
The title compounds, {4,4′‐dibromo‐2,2′‐[1,3‐propanediylbis(nitrilomethylidyne‐N)]diphenolato‐O,O′}nickel(II), [Ni(C17H14Br2N2O2)], and {4,4′‐dichloro‐2,2′‐[1,3‐propanediylbis(nitrilomethylidyne‐N)]diphenolato‐O,O′}copper(II), [Cu(C17H14Cl2N2O2)], lie on crystallographic twofold axes. In both structures, the metal coordination sphere is a tetrahedrally distorted square plane formed by the four‐coordinate N2O2 donor set of the Schiff base imine–phenol ligands. In the Ni compound, the Ni—O and Ni—N distances are 1.908 (3) and 1.959 (4) Å, respectively, while in the Cu compound, the Cu—O and Cu—N distances are 1.907 (2) and 1.960 (2) Å, respectively. The two Schiff base moieties, which themselves are nearly planar, are inclined at an angle of 29.26 (7)° for the Ni compound and 29.26 (5)° for the Cu compound. 相似文献