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1.
Minna GünesÛ Jussi Valkonen 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(11):i101-i103
Calcium tetrathiocyanatodiargentate(I) dihydrate, Ca[Ag2(SCN)4]·2H2O, contains eight‐membered Ag4S4 rings bonded together through shared atoms to form layers parallel to (100). The thiocyanate groups link the layers to Ca–O chains running parallel to the c axis. The Ca atom is located on a twofold rotation axis parallel to b and is surrounded by four water molecules of crystallization and four thiocyanate N atoms in a distorted square antiprism. 相似文献
2.
Eleonora Freire Sergio Baggio Ricardo Baggio Raúl Mariezcurrena 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(8):926-929
The title compounds, [Ni(S2O3)(C12H8N2)2]·0.92H2O·1.4CH4O and [Ni(S2O3)(C10H8N2)2]·2H2O·0.55CH4O, are monomeric, containing nickel(II) in a distorted octahedral coordination environment provided by the four N atoms of two bidentate bipy or phen groups and one S and one O atom from a chelating thiosulfate anion. The crystals are highly unstable outside their mother liquors and are stabilized in solution by a not fully determined number of water and methanol solvate molecules. The phenanthroline structure includes two independent moieties related by a non‐crystallographic inversion center. The thiosulfate anions display the usual S—O lengthening found when the anion acts in a bidentate mode. 相似文献
3.
Eleonora Freire Sergio Baggio Juan Carlos Muoz Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(8):m299-m301
The structure of the title compound, [Ni(ths)(bbip)(dmf)]·H2O [ths is thiosulfate, S2O3; bbip is 2,6‐bis(1H‐benzimidazol‐2‐yl)pyridine, C21H13N5; and dmf is dimethylformamide, C3H7NO], is monomeric, with the nickel ion octahedrally surrounded by an N,N′,N′′‐tridentate bbip molecule, an S,O‐bidentate ths molecule and an O‐monodentate dmf molecule. The H atoms of the hydration water molecule and the amino groups of bbip are involved in hydrogen bonding and determine a spatial organization of broad layers parallel to (001), which are connected by weak interactions. 相似文献
4.
Uwe Kolitsch 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(3):m129-m133
Rubidium chromium(III) dioxalate dihydrate [diaquabis(μ‐oxalato)chromium(III)rubidium(I)], [RbCr(C2O4)2(H2O)2], (I), and dicaesium magnesium dioxalate tetrahydrate [tetraaquabis(μ‐oxalato)magnesium(II)dicaesium(I)], [Cs2Mg(C2O4)2(H2O)4], (II), have layered structures which are new among double‐metal oxalates. In (I), the Rb and Cr atoms lie on sites with imposed 2/m symmetry and the unique water molecule lies on a mirror plane; in (II), the Mg atom lies on a twofold axis. The two non‐equivalent Cr and Mg atoms both show octahedral coordination, with a mean Cr—O distance of 1.966 Å and a mean Mg—O distance of 2.066 Å. Dirubidium copper(II) dioxalate dihydrate [diaquabis(μ‐oxalato)copper(II)dirubidium(I)], [Rb2Cu(C2O4)2(H2O)2], (III), is also layered and is isotypic with the previously described K2‐ and (NH4)2CuII(C2O4)2·2H2O compounds. The two non‐equivalent Cu atoms lie on inversion centres and are both (4+2)‐coordinated. Hydrogen bonds are medium‐strong to weak in the three compounds. The oxalate groups are slightly non‐planar only in the Cs–Mg compound, (II), and are more distinctly non‐planar in the K–Cu compound, (III). 相似文献
5.
Akifumi Iida Tomoji Ozeki 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(4):i43-i46
The crystal structures of dimagnesium disodium decavanadate icosahydrate, Mg2Na2V10O28·20H2O, (I), and trimagnesium decavanadate octacosahydrate, Mg3V10O28·28H2O, (II), have been determined by single‐crystal X‐ray diffraction. They crystallize with monoclinic (C2/c) and triclinic () symmetry, respectively. All the Mg2+ cations in (I) and (II) are octahedrally coordinated by six water molecules. The Na+ cations in (I) are coordinated by three water molecules and three O atoms of the decavanadate anions, and link the latter into a three‐dimensional network. The decavanadate anions in (II) are not linked to one another. 相似文献
6.
Sergio Baggio M. Enriqueta Díaz de Vivar Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(5):m192-m194
The title compound, [Zn(S2O3)(C18H12N6)(H2O)]·0.5H2O, contains two almost identical independent monomeric moieties composed of an octahedral Zn centre coordinated by a tridentate 2,4,6‐tri‐2‐pyridyl‐1,3,5‐triazine (tpt) ligand, one aqua ligand and an O,S‐chelating thiosulfate anion. The structure is stabilized by a solvent water molecule. Multiple strong hydrogen bonds with additional weaker π–π interactions between tpt groups define a multiple column spatial organization. 相似文献
7.
Michel Fleck 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(7):i63-i65
The crystal structures of dicaesium nickel disilver hexathiocyanate dihydrate, Cs2NiAg2(SCN)6·2H2O, (I), and caesium nickel trithiocyanate, CsNi(SCN)3, (II), have been determined by single‐crystal X‐ray diffraction at 273 K. Compounds (I) and (II) are monoclinic, with P21/c and P21/n symmetry, respectively. In (I), the Ni atom lies on an inversion centre; in (II), there are two independent Ni atoms, each of which lies on an inversion centre. The coordination polyhedra and the bonding schemes in the structures are discussed. 相似文献
8.
Lan Yang Changwen Hu Haruo Naruke Toshihiro Yamase 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(7):799-801
The title compound, poly[[[diaqua(μ‐4,4′‐bipyridyl)dinickel(II)]‐bis(μ‐4,4′‐bipyridyl)‐di‐μ‐hexaoxodivanadate(2?)] 2.5‐hydrate], [Ni2(V2O6)2(C10H8N2)3(H2O)2]·2.5H2O, has been prepared hydrothermally and characterized by elemental analyses, IR spectroscopy and single‐crystal X‐ray diffraction. The structure consists of [V2O6], [Ni(4,4′‐bipy)4O2] and [Ni(H2O)2(4,4′‐bipy)2O2] polyhedra, and water of crystallization. The Ni atoms and one bipyridyl group lie on centres of symmetry. 相似文献
9.
Uwe Ruschewitz Ingo Pantenburg 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(9):m483-m484
In catena‐poly[[[triaquacadmium(II)]‐μ‐acetylenedicarboxylato‐κ4O,O′:O′′,O′′′] hydrate], {[Cd(C4O4)(H2O)3]·H2O}n, the CdII atom is coordinated by two bidentate carboxylate groups and three water molecules, thus forming a sevenfold coordination polyhedron with all atoms located on general sites. These polyhedra are connected by the bifunctional acetylenedicarboxylate ligands, forming zigzag chains running parallel to [120]. Hydrogen bonds, which involve the non‐coordinated water molecule, connect these chains to form a three‐dimensional framework. 相似文献
10.
Eleonora Freire Sergio Baggio Juan Carlos Muoz Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(8):m455-m458
The structure of bis(1,10‐phenanthroline‐κ2N,N′)(thiosulfato‐κ2O:S)manganese(II) methanol solvate, [Mn(S2O3)(C12H8N2)2]·CH3OH, is made up of Mn2+ centers coordinated to two bidentate phenanthroline (phen) groups and an S,O‐chelating thiosulfate anion, forming monomeric entities. The structure of catena‐poly[[diaqua(2,9‐dimethyl‐1,10‐phenanthroline‐κ2N,N′)manganese(II)]‐μ‐thiosulfato‐κ2O:S], [Mn(S2O3)(C14H12N2)(H2O)2]n, is polymeric, consisting of Mn(dmph)(H2O)2 units (dmph is 2,9‐dimethyl‐1,10‐phenanthroline) linked by thiosulfate anions acting in an S,O‐chelating manner. 相似文献
11.
On the Coordination of Al in the Calcium Aluminate Hydrates 2 CaO · Al2O3 · 8 H2O and CaO · Al2O3 · 10 H2O By investigations with high-resolution 27Al-NMR in solids it is shown that in the compound 2 CaO · Al2O3 · 8 H2O the Al merely exist in octahedral coordination. According to this and considering its structural relationship with 4 CaO · Al2O3 · 19 H2O the dicalcium aluminate hydrate is proposed to be formulated as [Ca2Al(OH)6][Al(OH)3 (H2O)3]OH. Likewise for the compound CaO · Al2O3 · 10 H2O the octahedral coordination of the Al is proved by 27Al-NMR. This result corresponds with literature according to which a constitution as cyclohexaaluminate Ca3[Al6(OH)24] · 18 H2O is proposed. 相似文献
12.
Heinrich Billetter Frauke Hohn Ingo Pantenburg Uwe Ruschewitz 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(4):m130-m131
In the title compound, catena‐poly[[[triaquacopper(II)]‐μ‐acetylenedicarboxylato‐κ2O:O′′] hydrate], {[Cu(C4O4)(H2O)3]·H2O}n, the CuII ion is coordinated by two monodentate carboxylate groups in trans positions and three water molecules, thus forming a fivefold coordination polyhedron that can be described as a distorted square pyramid. All atoms are located on general sites. The polyhedra are connected by bifunctional acetylenedicarboxylate ligands, to form almost linear chains parallel to [001]. Hydrogen bonds involving the non‐coordinated water molecule connect these chains to form a three‐dimensional framework. 相似文献
13.
Samia Yahyaoui Rached Ben Hassen Bruno Donnadieu Jean‐Claude Daran Abdelhamid Ben Salah 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(11):i109-i111
The title compound, namely octaaquaytterbium(III) aquanonachlorotricadmate(II) hexahydrate, [Yb(H2O)8][Cd3Cl9(H2O)]·6H2O, was prepared by evaporation at 278 K from an aqueous solution of the ternary system YbCl3–CdCl2–H2O and was characterized by elemental chemical analysis and by X‐ray powder and single‐crystal diffraction studies. The crystal structure can be viewed as being built from layers of double chains of CdCl6 and CdCl5(H2O) octahedra separated by antiprismatic [Yb(H2O)8]3+ cations. The stabilization of the structure is ensured by O—H⋯O and O—H⋯Cl hydrogen bonds. A comparison with the structures of SrCd2Cl6·8H2O and CeCd4Cl11·13H2O is presented. 相似文献
14.
Ladislav Bohatý Michel Fleck 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(1):m22-m26
In the crystal structures of the title compounds, hexaaquacobalt(II) tetraaquadiglycinatocobalt(II) bis(sulfate), [Co(H2O)6][Co(C2H5NO2)2(H2O)4](SO4)2, (I), poly[diaqua‐μ3‐glycinato‐di‐μ4‐thiosulfato‐tetrasodium(I)], [Na4(C2H5NO2)(S2O3)2(H2O)2]n, (II), and poly[μ2‐glycinato‐μ4‐thiosulfato‐dipotassium(I)], [K2(C2H5NO2)(S2O3)]n, (III), all atoms are located on general positions, except the Co atoms in (I), which are located on inversion centres. In (I), hydrogen bonds play an important role, while the alkali thiosulfate compounds are characterized by three‐dimensional frameworks of polyhedra. Relations to other compounds of glycine and metal sulfates are commented on. 相似文献
15.
M. Enriqueta Díaz de Vivar Sergio Baggio María Teresa Garland Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(3):m123-m125
catena‐Poly[[[tetraaquazinc(II)]‐μ‐4,4′‐bipyridine‐κ2N:N′] [[μ‐thiosulfato‐κ2O:S‐bis[(thiosulfato‐κS)zinc(II)]]‐di‐μ‐4,4′‐pyridine‐κ4N:N′] dihydrate], {[Zn(C10H8N2)(H2O)4][Zn2(S2O3)3(C10H8N2)2]·2H2O}n, is a polymeric zinc complex built up from thiosulfate‐containing anionic chains, where the Zn atom is tetrahedrally coordinated, and aqua‐containing cationic chains incorporating octahedrally coordinated Zn. In each type of chain, the 4,4′‐bipyridine units act as spacers, and the chains run along three non‐intersecting almost orthogonal directions in space. The profusion of hydrogen‐bond donors (all the H atoms of the water molecules) and acceptors (the thiosulfate O and S atoms) generates a very complex hydrogen‐bonding scheme. 相似文献
16.
Anton I. Smolentsev Alexander I. Gubanov Andrey M. Danilenko 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(11):i99-i101
The structures of the hexafluoridoiridates(IV) of calcium, Ca[IrF6]·2H2O [calcium hexafluoridoiridate(IV) dihydrate], strontium, Sr[IrF6]·2H2O [strontium hexafluoridoiridate(IV) dihydrate], and barium, Ba[IrF6] [barium hexafluoridoiridate(IV)], have been determined by single‐crystal X‐ray analysis. The first two compounds are isomorphous. Their metal cations are eight‐coordinated in a distorted square‐antiprismatic coordination environment, and their anions are represented by an almost ideal octahedron. These two structures can be described as frameworks in which all atoms occupy general positions. Sr[RhF6] and Ba[RhF6] have a different space group (, from powder diffraction data) but similar cell dimensions. The structures are very close to that of Ba[IrF6]. The cation is in a cuboctahedral coordination. The metal atoms are located on special positions of symmetry, while the F atoms are in general positions. 相似文献
17.
Neven Strukan Marina Cindri Boris Kamenar 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(6):639-641
The crystal and molecular structure of dipotassium di‐μ‐oxo‐bis[aqua(oxalato‐O1,O2)oxomolybdenum(III)] trihydrate, K2[Mo2O4(C2O4)2(H2O)2]·3H2O, has been determined from X‐ray diffraction data. In the dimeric anion, which has approximate twofold symmetry, each Mo atom is in a distorted octahedral coordination, being bonded to one terminal oxo‐O atom, two bridging O atoms, two O atoms from the oxalato ligand and one from the water molecule. Bond lengths trans to the multiple‐bonded terminal oxo ligand are larger than those in the cis position, confirming the trans influence as a generally valid rule. 相似文献
18.
Giuseppe Bruno Santo Lanza Francesco Nicol Giuseppe Tresoldi Giuseppe Rosace 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(5):m316-m318
The title compound, [PdPtCl(C3H5)(C6H10N2S2)(C17H14NP)]·CHCl3, was obtained by deprotonation of the initial platinum(II) complex of the dithioxamide and subsequent reaction with [Pd(η3‐C3H5)(μ‐Cl)]2. Both metal atoms exhibit a square‐planar coordination geometry, with the two planes forming a dihedral angle of 21.7 (2)°. The dithioxamide bis‐chelating bridge is flat. 相似文献
19.
Wen‐Na Zhao Jian‐Wei Zou Qing‐Shen Yu 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(9):m443-m444
The title one‐dimensional chain nickel(II)–disulfide complex, [Ni(C14H8O4S2)(C5H5N)2(H2O)]n, has each NiII cation coordinated by two N atoms from two pyridine ligands, three carboxylate O atoms from two different dithiodibenzoate ligands and one O atom from a coordinated water molecule, in a distorted octahedral coordination geometry. Each dithiodibenzoate ion links two NiII cations through its carboxylate O atoms, making the structure polymeric. Hydrogen‐bond interactions between two shoulder‐to‐shoulder chains lead to the formation of a ladder‐like structure. 相似文献
20.
Preparation,Crystal Structure and Vibrational Spectra of Ca2P2O6·2H2O and [Ca(H2O)3(H2P2O6)]·0.5(C12H24O6)·H2O 下载免费PDF全文
The calcium salts Ca2P2O6 · 2H2O ( 1 ) and [Ca(H2O)3(H2P2O6)] · 0.5(C12H24O6) · H2O ( 2 ) were prepared and structurally characterized by single‐crystal X‐ray diffraction. Compound 1 crystallizes in the orthorhombic space group Pbca and compound 2 in the monoclinic space group P21/n. The crystal structure of compound 1 consists of chains of edge‐sharing [CaO7] polyhedra linked by hypodiphosphate(IV) anions to form a three‐dimensional network. The crystal structure of compound 2 consists of alternated layers of crown ether and water molecules and respective ionic units. Within the layers of ionic units the Ca2+ cations are octahedrally coordinated by three monodentate dihydrogenhypodiphosphate(IV) anions and three water molecules. The IR/Raman spectra of the title compounds were recorded and interpreted, especially with respect to the [P2O6]4– and [H2P2O6]2– groups. The phase purity of 2 was verified by powder diffraction measurements. 相似文献