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1.
１ＩＮＴＲＯＤＵＣＴＩＯＮＩｎｒｅｃｅｎｔｙｅａｒｓ,ａｓｅｒｉｅｓｏｆｌａｎｔｈａｎｉｄｅ ａｌｕｍｉｎｉｕｍｃｏｍｐｌｅｘｅｓｗｈｉｃｈａｒｅａｃｔｉｖｅｆｏｒｐｏｌｙ ｍｅｒｉｚａｔｉｏｎｏｆｏｌｆｉｎｓ〔１〕ｈａｖｅｂｅｅｎｒｅｐｏｒｔｅｄ．...  相似文献   

2.
１ＩＮＴＲＯＤＵＣＴＩＯＮＲｅｃｅｎｔｒｅｓｅａｒｃｈｏｎａｓｅｒｉｅｓｏｆｄｉｎｕｃｌｅａｒｍｏｌｙｂｄｅｎｕｍ（０）ｃａｒｂｏｎｙｌｃｏｍｐｌｅｘｅｓｃｏｎｔａｉｎ ｉｎｇｔｈｉｏｌａｔｏ ｂｒｉｄｇｅｓｈａｓｌｅｄｔｏｔｈｅｃｏｎｃｌｕｓｉｏｎ...  相似文献   

3.
ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｓｙｎｔｈｅｓｉｓｏｆｐｏｌｙｎｕｃｌｅａｒｃｏｐｐｅｒ ｌａｎｔｈａｎｏｉｄｃｏｍｐｌｅｘｅｓｉｓｏｆｓｐｅｃｉａｌｉｎｔｅｒｅｓｔｆｏｒｓｅｖ ｅｒａｌｒｅａｓｏｎｓ〔１－４〕．Ｔｈｅｓｅｃｏｍｐｌｅｘｅｓａｒｅｉｍ...  相似文献   

4.
1　ＩｎｔｒｏｄｕｃｔｉｏｎＡｗｉｄｅｖａｒｉｅｔｙｏｆｔｒｉｎｕｃｌｅａｒｏｘｏ ｃａｒｂｏｘｙｌａｔｏｃｏｍｐｌｅｘｅｓｈａｖｅｂｅｅｎｓｙｎｔｈｅｓｉｚｅｄａｎｄｓｔｕｄｉｅｄｆｏｒｔｈｅｉｒｉｎｔｅｒｅｓｔｉｎｇｃｈｅｍｉｃａｌａｎｄｐｈｙｓｉｃａｌｐｒｏｐｅｒｔｉｅｓ[1 ].Ｔｈｅｖｉｂｒａｔｉｏｎａｌｓｐｅｃｔｒａｏｆｍｏｓｔｏｆｔｈｅｓｅｃｏｍｐｏｕｎｄｓ,ｗｈｉｃｈｇｉｖｅｍｕｃｈｉｎｆｏｒｍａｔｉｏｎａｂｏｕｔｔｈｅｓｔｒｕｃｔｕｒｅａｎｄｅｌｅｃｔｒｏｎｄｅｌｏｃａｌｉｚａｔｉｏｎ…  相似文献   

5.
１ＩＮＴＲＯＤＵＣＴＩＯＮＲｅｃｅｎｔｌｙ,ｔｈｅｃｈｅｍｉｓｔｒｙｏｆｃｏｍｐｌｅｘｅｓｃｏｎｔａｉｎｉｎｇｌｏｗ ｖａｌｅｎｃｅｍｅｔａｌａｔｏｍｓｈａｓｉｎｃｒｅａｓ ｉｎｇｌｙａｔｒａｃｔｅｄｔｈｅａｔｅｎｔｉｏｎｆｒｏｍｃｈｅｍｉｓｔｓａｎ...  相似文献   

6.
１ＩＮＴＲＯＤＵＣＴＩＯＮＯｒｇａｎｏｌａｎｔｈａｎｉｄｅｃｏｍｐｌｅｘｅｓｉｎｖｏｌｖｉｎｇｂｏｔｈｃｙｃｌｏｐｅｎｔａｄｉｅｎｙｌａｎｄβ ｄｉｋｅｔｏｎａｔｏｃｈｅｌａｔｅｌｉｇａｎｄｓｈａｖｅｂｅｅｎｓｙｎｔｈｅｓｉｚｅｄ〔１ ４〕,ａｎｄｏ...  相似文献   

7.
ＩｎｔｒｏｄｕｃｔｉｏｎＴｈｅｏｒｇａｎｏｍｅｔａｌｌｉｃｃｈｅｍｉｓｔｒｙｏｆｌａｎｔｈａｎｉｄｅｍｅｔａｌｓｉｎｌｏｗｏｘｉｄａｔｉｏｎｓｔａｔｅｓｉｓｃｕｒｒｅｎｔｌｙｕｎ ｄｅｒｇｏｉｎｇａｒａｐｉｄｄｅｖｅｌｏｐｍｅｎｔ.Ｔｈｅｓｔｕｄｉｅｓｏｎｄｉｖａｌｅｎｔｍｅｔａｌ ｃｏｍｐｌｅｘｃｈｅｍｉｓｔｒｙｈａｖｅｌｅｄｔｏａｖａｒｉｅｔｙｏｆｎｅｗｃｌａｓｓｅｓｏｆｃｏｍｐｌｅｘｅｓａｎｄｒｅａｃｔｉｖｉｔｙｐａｔｔｅｒｎｓ[14 ] .Ｔｈｅｉｍｐｏｒｔａｎｃｅｏｆｓｔｅｒｉｃｆａｃｔｏｒｓｃ…  相似文献   

8.
1　ＩＮＴＲＯＤＵＣＴＩＯＮＣｅｒｔａｉｎｃｏｐｐｅｒｃｏｍｐｌｅｘｅｓｈａｖｅｂｅｅｎｓｈｏｗｎｔｏｈａｖｅｕｎｕｓｕａｌｃｈｅｍｉｃａｌｐｒｏｐｅｒｔｉｅｓｓｕｃｈａｓｏｘｙｇｅｎｔｒａｎｓｆｅｒ,ｏｘｉｄａｔｉｖｅａｄｄｉｔｉｏｎａｎｄｈｏｍｏｇｅｎｏｕｓｃａｔａｌｙｔｉｃｈｙｄｒｏｇｅｎａｔｉｏｎ[1].Ｏｘｉｄａｔｉｖｅａｄｄｉｔｉｏｎｒｅａｃｔｉｏｎｓａｒｅｋｅｙｓｔｅｐｓｉｎｔｈｅａｃｔｉｖａｔｉｏｎｏｆσｂｏｎｄｓｉｎａｇｒｅａｔｎｕｍｂｅｒｏｆｃａｔａｌｙｔｉｃｐｒｏｃｅｓｓ.Ｃｏｐ…  相似文献   

9.
０ＩｎｔｒｏｄｕｃｔｉｏｎＮｕｍｅｒｏｕｓｕｎｉｑｕｅｆｒａｍｅｗｏｒｋｓｈａｖｅｂｅｅｎｒｅｐｏｒｔｅｄｂｙａｓｓｅｍｂｌｙｏｆｒａｔｉｏｎａｌｄｅｓｉｇｎｅｄｏｒｇａｎｉｃｌｉｇ-ａｎｄｓｗｉｔｈｍｅｔａｌｉｏｎｓｏｖｅｒｔｈｅｐａｓｔｄｅｃａｄｅ１～３．Ｉｔｉｓｋｎｏｗｎｔｈａｔｂｏｔｈｉｍｉｄａｚｏｌｅａｎｄｃａｒｂｏｘｙｌａｔｅａｒｅｆｕｎｃｔｉｏｎａｌｇｒｏｕｐｓｆｏｒｃｏｏｒｄｉｎａｔｉｏｎｔｏｔｒａｎｓｉｔｉｏｎｍｅｔａｌｉｏｎｓｔｏｆｏｒｍｃｏｍｐｌｅｘｅｓ４～６．Ｈｏｗｅｖｅ…  相似文献   

10.
１ＩＮＴＲＯＤＵＣＴＩＯＮＭｅｔａｌｉｃｃｏｍｐｌｅｘｅｓｏｆｓｃｈｉｆｂａｓｅｓｈａｖｅａｔｒａｃｔｅｄｔｈｅａｔｅｎｔｉｏｎｏｆｒｅｓｅａｒｃｈｅｒｓｄｕｅｔｏｔｈｅｉｒａｎｔｉｖｉｒａｌ，ｆｕｎｇｉｓｔａｔｉｃ，ａｎｄｃａｔａｌｙｔｉｃａｃｔｉ...  相似文献   

11.
Using Ni(Im)62+ (Im = imidazole) as the structural unit, the effects of oxygen-containing anions, such as SO42-, NO3? and CO32- on the structure of water clusters were studied. The crystal structures of three compounds [Ni(Im)6][SO4(H2O)11] (1), [Ni(Im)6][(NO3)Cl(H2O)4] (2), and [Ni(Im)6][CO3(H2O)5] (3) were obtained. Using Mercury-3.8 software to analyze the above three crystal structures, find different anion of water clusters had a significant effect on the supramolecular structure. At the same time, it also significantly influences the number of water molecules in the crystal structure.  相似文献   

12.
The crystal structure of {aquaimidazole[2-(2-carbamoylhydrazone)-propionato]}copper(II) nitrate [Cu(L)Im(H2O)]NO3 (I), where HL is the semicarbazone of pyruvic acid, Im is imidazole, is dtermined. The crystal structure of I contains two independent complexes IA and IB in which copper atoms coordinate once deprotonated tridentate HL, imidazole, and water molecules. Outer spheres of the complexes contain nitrate ions. In the compounds studied the coordination polyhedron of the copper atom is a distorted tetragonal pyramid. Its base is composed of carboxyl and carbamide oxygen atoms, azomethine nitrogen of monodeprotonated HL molecules, and the imidazole nitrogen atom. In the crystal, nitrate ions and imidazole molecules link the complexes via hydrogen bonds into 2D networks parallel to the (010) plane. These networks in turn are in pairs arranged into layers along the [010] direction due to hydrogen bonds between water molecules and oxygen atoms of nitrate ions, and also by water molecules and O3 atoms of the neighboring 2D networks. In the crystal, the π-π stacking interaction is observed between the imidazole rings from different layers and there is also a N-O…Cg (π ring) interaction inside the layers.  相似文献   

13.
A new cyano‐bridged binuclear 4f‐3d complex Sm(DMSO)4‐(H2O)3Cr(CN)6 was synthesized and characterized by single crystal structure analysis. It crystallizes in monoclinic, space group P21 with a=0.9367(2) nm, b = 1.3917(3) nm, c = 1.1212(2) run, β = 99.88(3)° and Z = 2. In this binuclear complex, Sm atom is eight coordinated and linked to the Cr atom by a cyano bridge. The molecules packs to form 3D structure due to the hydrogen bonds among them. [K3(18‐C‐6)3(H2O)4]Cr(CN)6·3H2O (18‐C‐6 represents 18‐crown‐6‐ether) that was synthesized as a byproduct in the preparation of a Gd—Cr complex is also structurally characterized. Crystal data: triclinic, space group P‐l with a = 1.0496(7) nm, b= 1.1567(14) nm, c = 1.3530(13) nm, a = 94.15(9)°, β = 96.04(8)°, γ = 95.25(9)° and Z = l. [K3(18‐C‐6)3(H2O)4]‐Cr(CN)6·3H2O consists of ionic [K3(18‐C‐6)3(H2O)4]3+ and [Cr(CN)6]3‐ pairs, of which the [K3(18‐C‐6)3(H2O)4]3+ ion is a trinuclear duster connected by water, and K atoms are eight coordinated by eight oxygen atoms of one 18‐C‐6 and two water molecules.  相似文献   

14.
The crystal structure of the title compound, [Cu(C6H4NO2)(C2H3O2)(C3H4N2)(H2O)]·0.87H2O, has a square‐pyramidal‐coordinated CuII centre (the imidazole is trans to the picolinate N atom, the acetate is trans to the picolinate –CO2 group and the aqua ligand is in a Jahn–Teller‐elongated apical position) and has two symmetry‐independent molecules in the unit cell (Z′ = 2), which are connected through complementary imidazole–picolinate N—H...O hydrogen bonding. The two partially occupied solvent water molecules are each disordered over two positions. The disordered solvent water molecules, together with pseudosymmetry elements, support the notion that a crystal structure with multiple identical chemical formula units in the structural asymmetric unit (Z′ > 1) can represent a crystal `on the way', that is, a kinetic intermediate form which has not yet reached its thermodynamic minimum. Neighbouring molecules form π–π stacks between their imidazole and picolinate N‐heterocycles, with centroid–centroid distances in the range 3.582 (2)–3.764 (2) Å.  相似文献   

15.
The title compound [La(phen)2(H2O)2(NO3)2](NO3) · 2(phen)(H2O) with phen = 1,10‐phenanthroline was prepared by the stoichiometric reaction of La(NO3)3 · 6 H2O and 1,10‐phenanthroline monohydrate in a CH3OH–H2O solution. The crystal structure (triclinic, P 1 (no. 2), a = 11.052(2), b = 13.420(2), c = 16.300(2) Å, α = 78.12(1)°, β = 88.77(1)°, γ = 83.03(1)°, Z = 2, R = 0.0488, wR2 = 0.1028) consists of [La(phen)2(H2O)2(NO3)2]2+ complex cations, NO3– anions, phen and H2O molecules. The La atom is 10‐fold coordinated by four N atoms of two bidentate chelating phen ligands and six O atoms of two H2O molecules and two bidentate chelating NO32– ligands with d(La–O) = 2.522–2.640 Å and d(La–N) = 2.689–2.738 Å. The intermolecular π‐π stacking interactions play an essential role in the formation of two different 2 D layers parallel to (001), which are formed by complex cations and uncoordinating phen molecules, respectively. The uncoordinated NO3– anions and H2O molecules are sandwiched between the cationic and phen layers.  相似文献   

16.
Two novel one‐ and two‐dimensional network structure bismuth(III) complexes with N, N‐di(2‐hydroxylethyl)‐aminodithiocarboxylate, {Bi[S2CN(C2H4OH)2]2[1, 10‐Phen]2(NO3)}·3H2O (1) and (Bi[S2CN(C2H4OH)2]3)2 (2) were synthesized. Their crystal and molecular structures were determined by X‐ray single crystal diffraction analysis. The crystal 1 belongs to monoclinic system with space group C2/c, a=1.6431(7) nm, b=2.4323(10) nm, c= 1.2646(5) nm, β=126. 237(5), Z=4, V=4.076(3) nm3, Dc=1.757 Mg/m3, μ=4.598 mm?1, F(000)=2156, R= 0.0211, wR=0.0369. The structure shows a distorted square antiprism configuration with eight‐coordination for the central Bi atom. The one‐dimensional chain structure was formed by H‐bonding interaction between hydroxyl group of N, N‐di(2‐hydroxylethyl)aminodithiocarboxylate ligands and crystal water. The crystal 2 belongs to monoclinic system with space group p2(1)/c, a= 1.1149(4) nm, b=2.1274(8) nrn, c=2.2107(8) nm, β=98.325(8)°, 2=4, V=5. 188(3) nm3, Dc=1.920 Mg/m3, μ=7.315 mm?1, F(000)=2944, R=0.0565, wR=0.0772. The structure shows a distorted square antiprism configuration with eight‐coordination for the central Bi atoms. The two‐dimensional network structure was formed by H‐bonding interaction between adjacent molecules.  相似文献   

17.
The Reaction of freshly precipitated NiCO3 with phenanthroline and suberic acid in CH3OH/H2O at room temperature gave the title complex consisting of polymeric {Ni[Ni(phen)(H2O)4]2L4/2}2+ cationic chains, suberate anions and hydrogen bonded H2O molecules. The cationic chains are generated from bis‐monodentate suberato ligands bridging the trinuclear {Ni[Ni(phen)(H2O)4]2}6+ groups, in which the central Ni atom is, via two μ‐H2O molecules, coordinated to two monodentate cationic [Ni(phen)(H2O)4]2+ complex ligands at trans positions. The NiO6 octahedral coordination about the central Ni atom is elongated tetragonally distorted with d(Ni—O) = 2.033—2.166Å and the NiN2O4 octahedra about the side Ni atoms are significantly distorted with d(Ni—N) = 2.089, 2.099Å, d(Ni—O) = 2.046—2.117Å. The polymeric cationic chains are assembled via π—π stacking interactions into open 2D layers, between which the suberate anions and crystal H2O molecules are sandwiched. Crystal data: triclinic, P1¯ (no. 2), a = 11.397(2)Å, b = 11.975(2)Å, c = 12.500(2)Å, α = 107.75(1)°, β = 104.50(1)°, γ = 109.68(1)°, Z = 1, R = 0.0521, wR2 = 0.1249 for 3892 out of 6198 reflections with Fo2 > 2σ(Fo2).  相似文献   

18.
The imidazole covalently coordinated sandwich‐type heteropolytungstates Na9[{Na(H2O)2}3{M(C3H4N2)}3‐ (SbW9O33)2]·xH2O (M=NiII, x=32; M=CoII, x=32; M=ZnII, x=33; M=MnII, x=34) were obtained by the reaction of Na2WO4·2H2O, SbCl3·6H2O, NiCl2·6H2O [MnSO4·H2O, Co(NO3)2·6H2O, ZnSO4·7H2O] and imidazole at pH≈7.5. The structure of Na9[{Na(H2O)2}3{Ni(C3H4N2)}3(SbW9O33)2]·32H2O was determined by single crystal X‐ray diffraction. Polyanion [{Na(H2O)2}3{Ni(C3H4N2)}3(SbW9O33)2}3]9? has approximate C3v symmetry, imidazole coordinated six‐nuclear cluster [{Na(H2O)2}3{Ni(C3H4N2)}3]9+ is encapsulated between two (α‐SbW9O33)9?, the three rings of imidazole in the polyanion are perpendicular to the horizontal plane formed by six metals (Na‐Ni‐Na‐Ni‐Na‐Ni) in the central belt, and π‐stacking interactions exist between imidazoles of neighboring polyanions with dihedral angel of 60°. The compounds were also characterized by IR, UV‐Vis spectra, TG and DSC, and the thermal decomposition mechanism of the four compounds was suggested by TG curves.  相似文献   

19.
The title mononuclear complex, [Ni(C5H2N2O4)(C3H4N2)2(H2O)2] or [Ni(HOr)(im)2(H2O)2] (im is imidazole and H3Or is orotic acid, or 2,6‐dioxo‐1,2,3,6‐tetra­hydro­pyrimidine‐4‐carboxylic acid), has been synthesized and the crystal structure determination is reported. The NiII ion in the complex has a distorted octahedral coordination geometry comprised of one deprotonated pyrimidine N atom and the adjacent carboxyl­ate O atom of the orotate ligand, two tertiary imidazole N atoms and two aqua ligands. An extensive three‐dimensional network of OW—H⋯O and N—H⋯O hydrogen bonds, and π–π and π–ring interactions are responsible for crystal stabilization.  相似文献   

20.
The title complex [(H2O)2(IMI)3Ni(TCB)Ni(IMI)3‐(H2O)2] H2O (TCB = 1,2,4,5‐benzenetetracarboxylato te‐travalent anion; IMI = imidazole) has been prepared by the reaction of Ni(IMI)3(Ac)2 and TCB in aqueous solution. The crystal structure has been determined by single‐crystal X‐ray diffraction method. It crystallizes in the monoclinic system, space group P21/c(# 14), a = 1.2714(4) nm, b = 0.9411 (3) nm, c = 1.5869(4) nm, β= 108.54(2)°, V= 1.8001(9) nm3, Z = 2. The main feature of the crystal structure is a symmetric binuclear unit made up of two slightly distorted coordination octahedrons, which are bridged by TCB in monodentate fashion to each metal ion. Moreover three nitrogen atoms from three imidazoles, three oxygen atoms from two water molecules and one carboxylate group of TCB coordinated to a nickel (I) ion are found on a face of the octahedron respectively, so the octahedron is a facial isomer.  相似文献   

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