共查询到20条相似文献,搜索用时 46 毫秒
1.
Olivier Pons y Moll Thierry Le Borgne Pierre Thury Michel Ephritikhine 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(4):392-393
The Schiff base N‐(tert‐butyl)‐3‐methoxysalicylaldimine (LH) forms a complex with gadolinium(III) chloride, [GdCl2(LH)2(C5H5N)2]+, in which the two O atoms of each ligand are coordinated (the phenolic O atom being deprotonated) and the imine N atom is protonated and involved in a hydrogen bond with the phenoxide group. This complex crystallizes as an ion pair with uranyl tetrachloride, i.e. bis{bis[2‐(tert‐butyliminiomethyl)‐6‐methoxyphenolato‐O,O′]dichlorobis(pyridine‐N)gadolinium(III)} tetrachlorodioxouranium(VI) tetrapyridine solvate [GdCl2(C12H17NO2)2(C5H5N)2]2[UCl4O2]·4C5H5N. The U atom of the UCl4O2 anion lies on an inversion centre. 相似文献
2.
Kai Liang Yi‐Zhi Li He‐Gen Zheng Xin‐Quan Xin 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(8):m310-m312
In the title compound, [1,4‐bis(diphenylphosphino)butane‐2κ2P,P′]di‐μ‐thio‐1:2κ4S‐dithio‐1κ2S‐palladium(II)tungsten(VI) N,N′‐dimethylformamide hemisolvate hemihydrate, [PdWS4(C28H28P2)]·0.5C3H7NO·0.5H2O, the Pd atom is coordinated by two S atoms from the distorted‐tetrahedral [WS4]2− anion and two P atoms from the dppb molecule [dppb is 1,4‐bis(diphenylphosphino)butane] in an approximately square‐planar configuration. A puckered seven‐membered ring is formed by the Pd atom and the dppb ligand. 相似文献
3.
Matthias W. Esterhuysen Helgard G. Raubenheimer 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(7):m286-m288
The title compound, tetracarbonyl‐1κ4C‐tris(triphenylphosphino)‐1κP,2κP,3κP‐triangulo‐chromiumdigold(Au—Au)(2 Cr—Au) tetrahydrofuran solvate, [Au2Cr(C18H15P)3(CO)4]·C4H8O, is a stable isolobal analogue of the extremely labile [(η2‐H2)CrLn–1] molecular hydrogen complex (n = 6; L is a neutral ligand, e.g. CO or PPh3), and features the shortest known separation [2.6937 (2) Å] between two Au atoms in a triangular heteronuclear metal‐cluster framework. 相似文献
4.
Ralph Sthler Wolfgang Bensch 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(11):m537-m538
Turquoise crystals of the title salt, propylammonium di‐μ‐thio‐1:2κ4S‐dithio‐2κ2S‐tris(2‐aminoethyl)amine‐1κ4N‐antimony(V)nickel(II), (C3H10N)[NiSbS4(C6H18N4)] or [PAH][Ni(tren)SbS4] [where tren is tris(2‐aminoethyl)amine and PA is propylamine], were synthesized under solvothermal conditions by reacting [Ni(tren)2]Cl2, Sb and S in a solution of PA. The NiII ion is octahedrally surrounded by four N atoms of the tetradentate tren molecule and by two S atoms of the tetrahedral [SbVS4]3? anion, thus forming the anionic [Ni(tren)SbS4]? part of the compound. Charge balance is achieved through the PAH+ cation. An extended intermolecular hydrogen‐bonding network is observed between the anion and the cation. 相似文献
5.
Xiaoming Liu Colin A. Kilner Malcolm A. Halcrow 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(5):m290-m291
The title compound, [Fe2Cl4O(C7H12N2)4], contains vertex‐sharing distorted tetrahedral [FeOCl3]? and octahedral [FeOCl(HpztBu)4]+ moieties (HpztBu is 5‐tert‐butylpyrazole), linked by a bent oxo bridging ligand. The two FeIII centres are also bridged by intramolecular hydrogen bonds between the pyrazole N—H groups and the O2? and Cl? ligands. 相似文献
6.
Robert J. Baker Helga Bettentrup Cameron Jones 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(9):m339-m341
Tetra‐tert‐butyltetraphosphacubane, P4C4tBu4, reacts with water in the presence of `GaI' to yield two products, namely 4,6,7,8‐tetra‐tert‐butyl‐1,2,3‐triphospha‐5‐phosphoniatetracyclo[3.2.1.02,4.03,8]oct‐6‐ene tetraiodogallate(III), (C20H37P4)[GaI4], and triiodo(3,5,7,8‐tetra‐tert‐butyl‐1,2,4λ5,6‐tetraphosphatetracyclo[4.1.1.02,5.07,8]octan‐4‐one)gallium(III), [GaI3(C20H38OP4)], both of which have been structurally characterized. The X‐ray crystal structure determination of the former compound shows it to be an ion‐separated salt, while the latter compound is a neutral phosphinite complex of GaI3. 相似文献
7.
Robert E. Mulvey Alan R. Kennedy J. Hilko Schulte 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(11):1288-1289
The metallation reaction between dibutylmagnesium and 2,6-diisopropyl-N-(trimethylsilyl)aniline gives the unusual monomeric three-coordinate complex (diethyl ether-κO)bis[2,6-diisopropyl-N-(trimethylsilyl)anilido-κN]magnesium(II), [Mg(C15H26NSi)2(C4H10O)] or [Mg{(Me3Si)(2,6-iPr2C6H3)N}2(Et2O)]. This low-coordinate species has a distorted trigonal-planar coordination environment, with an additional short Mg—Cipso contact of 2.799 (2) Å. 相似文献
8.
Bernardo Masci Stefano Saccheo Massimiliano Fonsi Maurizio Varrone Marco Finelli Martine Nierlich Pierre Thury 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(8):978-981
Three methoxy‐ether and one methoxy‐ether/crown‐ether derivatives of p‐tert‐butyltetrahomodioxa‐ and p‐R‐octahomotetraoxacalix[4]arenes (R = methyl, tert‐butyl, H) have been investigated. The first three compounds, 7,15,21,27‐tetra‐tert‐butyl‐29,30,31,32‐tetramethoxy‐3,11‐dioxapentacyclo[23.3.1.15,9.113,17.119,23]ditriaconta‐1(29),5,7,9(30),13,15,‐17(31),19,21,23(32),25,27‐dodecaene, C50H68O6, 33,34,35,36‐tetramethoxy‐7,15,23,31‐tetramethyl‐3,11,19,27‐tetraoxapentacyclo[27.3.1.15,9.113,17.121,25]hexatriaconta‐1(33),5,7,9(34),13,15,17(35),21,23,25(36),29,31‐dodecaene, C40H48O8, and 7,23‐di‐tert‐butyl‐33,34,35,36‐tetramethoxy‐3,11,19,27‐tetraoxapentacyclo[27.3.1.15,9.113,17.121,25]hexatriaconta‐1(33),5,7,9(34),13,15,17(35),‐ 21,23,25(36),29,31‐dodecaene, C44H56O8, in the partial‐cone or 1,2‐alternate conformations, present the common feature of methoxy‐ether self‐inclusion, while the fourth, 42,43‐dimethoxy‐7,15,23,31‐tetramethyl‐3,11,19,27,34,37,40‐heptaoxahexacyclo[15.15.9.15,9.121,25.013,41.029,33]tritetraconta‐5(42),6,8,13(41),14,16,21(43),22,24,29(33),30,32‐dodecaene, C42H50O9, adopts the 1,3‐alternate conformation owing to the presence of a 1,3‐polyether chain. 相似文献
9.
Lionel Moisan Thierry Le Borgne Pierre Thury Michel Ephritikhine 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(2):m98-m101
In bis[1,1′,2,2′,3,3′,4,4′‐octamethyl‐5‐(2‐pyridinio)‐5′‐(2‐pyridyl)ferrocene] di‐μ3‐chloro‐hexadeca‐μ2‐chloro‐hexachlorodi‐μ4‐oxo‐di‐μ3‐oxo‐bis[(η5,κN)‐1,2,3,4‐tetramethyl‐5‐(2‐pyridyl)cyclopentadienyl]octauranium(IV) dichloromethane tetrasolvate, [Fe(C14H17N)(C14H16N)]2[U8Cl24O4(C14H16N)2]·4CH2Cl2, (I), two protonated Fe(cp*py)2 units [cp*py is tetramethyl‐5‐(2‐pyridyl)cyclopentadiene] form an ion pair with the dianionic centrosymmetric cluster U8Cl24O4(cp*py)2. The latter is the highest nuclearity assemblage in the chemistry of uranium (non‐uranyl) compounds reported to date. 相似文献
10.
Daniel B. Werz Frank Ohlbach Frank Rominger Rolf Gleiter 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(1):o1-o3
The title compounds are electron‐poor ethynes. The structure determination of bis(tert‐butylsulfonyl)ethyne, C10H18O4S2, (I), is the first of a bis‐sulfonyl‐substituted ethyne. The molecule is situated on a crystallographic inversion centre. The S—Csp bond [1.737 (2) Å] is the longest of this type reported to date. 1‐tert‐Butylsulfinyl‐2‐tert‐butylsulfonylethyne, C10H18O3S2, (II), which is basically the same as (I) minus one O atom, crystallizes isomorphous with (I). This results in a nearly equal distribution of the three O atoms over the four possible positions. 相似文献
11.
Seik Weng Ng S. Shanmuga Sundara Raj Hoong‐Kun Fun Ibrahim Abdul Razak James M. Hook 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(8):966-968
catena‐Poly[dicyclohexylammonium [tributyltin‐μ‐(4‐oxo‐4H‐pyran‐2,6‐dicarboxylato‐O2:O6)]], (C12H24N)[Sn(C7H2O6)(C4H9)3], consists of 4‐oxo‐4H‐pyran‐2,6‐dicarboxylato groups that axially link adjacent tributyltin units into a linear polyanionic chain. The ammonium counter‐ions surround the chain, and each cation forms a pair of hydrogen bonds to the double‐bond carbonyl O atoms of the same dianionic group. The chain propagates in a zigzag manner along the c axis of the monoclinic cell. In catena‐poly[methyl(phenyl)ammonium [tributyltin‐μ‐(pyridine‐2,6‐dicarboxylato‐O2:O6)]], (C7H10N)[Sn(C7H3NO4)(C4H9)3], the pyridine‐2,6‐dicarboxylato groups also link the tributyltin groups into a chain, but the hydrogen‐bonded chain propagates linearly on the ac face of the monoclinic cell. 相似文献
12.
Anthony L. Spek Johannes Canisius Hans Preut Norbert Krause 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(9):1065-1066
The title compound, di‐μ‐chloro‐bis{[(2,3,4‐η)‐ethyl 6,6‐dimethyl‐5‐oxohept‐2‐enoato]palladium(II)}, [Pd2Cl2(C11H17O3)2], is a binuclear chloro‐bridged palladium allyl complex that was obtained serendipitously From the reaction of 6,6‐dimethyl‐2‐hepten‐4‐ynoate with Na2PdCl4 in water‐containing alcohol. The allyl group is substituted with an ester and a tert‐butylcarboxy group. The dimeric molecules link via C—H?O contacts into a two‐dimensional network parallel to the bc plane. 相似文献
13.
Nack‐Do Sung Ki‐Seob Yun Jin‐Gyu Kim Il‐Hwan Suh 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(9):e370-e371
The title compound, μ‐aqua‐1:2κ2O‐pentaaqua‐1κ2O,2κ3O‐μ‐3,6‐bis(6‐methyl‐2‐pyridyl)pyridazine‐1κ2N1,N6:2κ2N2,N3‐chloro‐1κCl‐dinickel(II) trichloride trihydrate, [Ni2Cl(C16H14N4)(H2O)6]Cl3·3H2O, consists of two NiII atoms, a 3,6‐bis(6‐methyl‐2‐pyridyl)pyridazine molecule, four Cl atoms and nine water molecules. The two Ni atoms are octahedrally coordinated by N and Cl atoms, and by water molecules, and the three six‐membered rings, a pyridazine and two picolines, are planar to within 0.181 (3) Å. The crystal structure is stabilized by an intra‐ and intermolecular hydrogen‐bonding scheme involving water–water and water–chlorine interactions. 相似文献
14.
Yusuf
zcan Semra de Mehmet Karakus Hamza Ylmaz 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(7):m388-m389
In the the title compound, [Ni(C21H28O2PS2)2], the Ni atom resides on an inversion centre and is coordinated in a square‐planar array by four S atoms, with Ni—S and P—S bond lengths of 2.2336 (12)/2.2351 (13) and 1.9910 (16)/2.0010 (17) Å, respectively. The two O‐2,4‐di‐tert‐butylphenyl and two 4‐methoxyphenyl moieties adopt trans configurations about the central Ni atom. 相似文献
15.
Nicholas C. Norman A. Guy Orpen Michael J. Quayle Edward G. Robins 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(1):50-52
The structure of trans‐(bromo/chloro)hydridotetrakis(tri‐methylphosphine)rhodium(III) bis(tetrabromopyrocatechol‐ato‐O,O′)borate dichloromethane solvate, [RhCl0·74Br0·26H‐(C3H9P)4](C12BBr8O4)·CH2Cl2, is reported. The RhIII complex shows bromine/chlorine compositional disorder with a trans arrangement of the hydride and halide ligands. The anion has approximate D2d symmetry, with a central spiro‐B atom distorted from regular tetrahedral geometry by the small chelating O—B—O angles. 相似文献
16.
Uwe‐Christoph Knig Michael Berkei Claudia Hirsch Hans Preut Terence Nigel Mitchell 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(10):e450-e451
The synthesis and the X‐ray structural analysis of the title compound, μ‐chloro‐1:2κ2Cl‐trichloro‐1κCl,2κ2Cl‐tetramethyl‐1κ2C,2κ2C‐(N‐methylpyrrolidin‐2‐one)‐1κO‐ditin(IV), [Sn2Cl4(CH3)4(C5H9NO)], are described. The title compound is found to exhibit a distorted trigonal–bipyramidal geometry at both SnIV atoms. The Sn—Cl—Sn angle involving the bridging chlorine ligand is 135.56 (5)°, with the Sn—Cl bond lengths being 2.5704 (13) and 3.1159 (13) Å. 相似文献
17.
Maurice Abou Rida Joseph Saikaili Anthony K. Smith Alain Thozet 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(4):352-353
The title compound, dicarbonyl‐1κ2C‐di‐μ‐chloro‐1:2κ4Cl‐[cis,cis‐2(η4)‐1,5‐cyclooctadiene]dirhodium(I), [Rh2Cl2(C8H12)(CO)2], consists of a dichloro‐bridged dimer of rhodium, with a non‐bonded Rh?Rh distance of 3.284 (2) Å. One Rh atom is coordinated to two carbonyl ligands, while the other Rh atom is coordinated to the cyclooctadiene moiety. 相似文献
18.
Filiz Ercan Orhan Atakol Cengiz Arc Ingrid Svoboda Hartmut Fuess 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(3):m193-m196
The title compounds, bis(dimethylformamide)‐1κO,3κO‐bis{μ‐2,2′‐[2,2′‐dimethylpropane‐1,3‐diylbis(nitrilomethylidyne)]diphenolato}‐1κ4N,N′,O,O′:2κ2O,O′;2κ2O,O′:3κ4N,N′,O,O′‐di‐μ‐nitrito‐1:2κ2N:O;2:3κ2O:N‐dinickel(II)cobalt(II), [CoNi2(NO2)2(C19H22N2O2)2(C3H7NO)2], (I), ‐copper(II), [CuNi2(NO2)2(C19H22N2O2)2(C3H7NO)2], (II), and ‐manganese(II), [MnNi2(NO2)2(C19H22N2O2)2(C3H7NO)2], (III), consist of centrosymmetric linear heterotrinuclear metal complexes. The three complexes are isostructural. There are three bridges across the Ni–M atom pairs (M is Co2+, Cu2+ or Mn2+) in each complex, involving two O atoms of a μ‐N,N′‐bis(salicylidene)‐2,2′dimethyl‐1,3‐propanediaminate ligand and an N—O moiety of a μ‐nitrito group. The coordination sphere around each metal atom, whether Co2+, Cu2+, Mn2+ or Ni2+, can be described as distorted octahedral. The Ni?M distances are 2.9988 (5) Å in (I), 2.9872 (5) Å in (II) and 3.0624 (8) Å in (III). 相似文献
19.
Ivana Kut Smatanov Jaromír Marek Peter van
rek Peter Schwendt 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(2):154-155
The crystal structure of the title complex, bis(tetra‐n‐butylammonium) bis(‐‐hydroxybenzeneacetato)‐1κ2O1,O2:2κO2;1κO2:2κ2O1,O2‐bis[oxo(peroxo)vanadium(V)] α‐hydroxybenzeneacetic acid solvate, (C16H36N)2[V2O2(O2)2(C8H6O3)2]·C8H8O3, consists of dimeric anions with twofold rotation symmetry, cations and molecules of mandelic acid. Deprotonated hydroxyl O atoms of the mandelate dianion ligands bridge the V atoms to give a non‐planar V2O2 ring. Each V atom has distorted pentagonal pyramidal coordination geometry, with an oxo ligand in the axial position. The mandelic acid molecule is disordered and coordinates weakly to the second axial site of each V atom through a carboxylate O atom. 相似文献
20.
Thierry Le Borgne Pierre Thury Michel Ephritikhine 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(1):m8-m9
The ligand 1,2,3,4‐tetramethyl‐5‐(2‐pyridyl)cyclopentadiene (cp*py) forms a dinuclear complex with UIV, i.e. di‐μ‐oxo‐bis{chloro(diethyl ether‐κO)[(η5,κN)‐1,2,3,4‐tetramethyl‐5‐(2‐pyridyl)cyclopentadienyl]uranium(IV)}, [U2Cl2O2(C14H16N)2(C4H10O)2], in which cp*py acts as a chelating ligand, being bound to the metal atom by the cyclopentadienyl unit and also by the N atom of the pyridyl ring. 相似文献