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1.
The combination of anhydrous SnCl4 with 18-crown-6 in aqueous conditions results in formation of the non-hydrolysed product [cis-SnCl4(H2O)2] · 18-crown-6 · 2H2O. The X-ray crystal structure shows extensive intermolecular hydrogen bonding involving the cis-octahedral SnCl4(H2O)2 units, the uncoordinated water molecules and the crown ether. Similarly, [2,2,2]cryptand reacts with an aqueous solution formed by adding anhydrous GaCl3 to slightly acidic water, affording [[2,2,2]cryptand + 2H+][GaCl4]2. 相似文献
2.
The reaction of MCl2 · 2H2O (M = Cu, Zn) with 2,3,5,6-tetra(2-pyridyl)pyrazine (tppz) (referred hereafter as L) in 2:1 molar ratio in acetonitrile at room temperature afforded binuclear complexes [M2(κ3-L)Cl4] [Cu (1), Zn (2)] where the ligand is bis-tridentate manner. The complexes have been characterized by elemental analyses, FAB-MS, IR, EPR, NMR and electronic spectral studies. Solid state structures of both the [Cu2(κ3-L)Cl4] · 5H2O (1), [Zn2(κ3-L)Cl4] · H2O (2) have been determined by single crystal X-ray analyses. A well-resolved uudd cyclic water tetramer and water monomer were reported in the crystal host of [Cu2(κ3-L)Cl4] · 5H2O (1) and [Zn2(κ3-L)Cl4] · H2O (2) showing the contribution of the water cluster to the stability of the crystal host 1 and 2. 相似文献
3.
Reaction of vanadium(III) chloride with 8-quinolinol (Hqn) gave a mononuclear vanadium(IV) complex, [VOCl2(H2O)2] 1) · 2H2qn · 2Cl · CH3CN, and three dinuclear vanadium(IV) complexes: [V2O2Cl2(qn)2(H2O)2] (2) · Hqn, [V2O2Cl2(qn)2(C3H7OH)2] (3), and [V2O2Cl2(qn)2(C4H9OH)2] (4). Reaction of vanadium(III) chloride with 5-chloro-8-quinolinol (HClqn) gave four dinuclear vanadium(IV) complexes: [V2O2Cl2(Clqn)2(H2O)2] (5) · 2HClqn, [V2O2Cl2(Clqn)2(C3H7OH)2] (6), [V2O2Cl2(Clqn)2(C6H5CH2OH)2] (7), and [V2O2Cl2(Clqn)2(C4H9OH)2] (8) · 2C4H9OH. Reaction of vanadium(III) chloride with 5-fluoro-8-quinolinol (HFqn) gave two dinuclear vanadium(IV) complexes: [V2O2Cl2(Fqn)2(H2O)2] (9) · HFqn · 2H2O and V2O2Cl2(Fqn)2(C3H7OH)2] (10). X-ray structures of 1 · 2H2qn · 2Cl · CH3CN, 3, 4, 6, 7, 8 · 2 t-BuOH, and 10 have been determined. As to the mononuclear species 1 · 2H2qn · 2Cl · CH3CN, coordination of Hqn to vanadium does not occur, but protonation to Hqn occurs to give H2qn+, which links 1’s through hydrogen bonding, while each of the dinuclear species has a terminal and a bridging qn (or Clqn, Fqn) ligand, giving rise to a (V-O)2 ring. Magnetic measurements of 3, 4, 6, 7, and 10 in solid form show very weak antiferromagnetic behavior, and the effective magnetic moments are close to spin only value (2.44) of d1-d1 system, while ESR of 3 in THF shows dissociation to monomeric species. Change from mononuclear, 1, to dinuclear, 2, species was followed by the change of electronic spectrum. 相似文献
4.
The synthesis and crystal structure of four new copper(I) and copper(II) supramolecular amine, and amine phosphonate, complexes is reported. Reaction of copper(I) with 2-,9-dimethyl-1-10-phenanthroline (dmp) produced a stable 4-coordinate Cu(I) species, [Cu(I)(dmp)2]Cl · MeOH · 5H2O (2), i.e., the increased steric hindrance in the ‘bite’ area of dmp did not prevent interaction with the metal and provided protection against oxidation which was not possible for the phen analogue [R. Clarke, K. Latham, C. Rix, M. Hobday, J. White, CrystEngCommun. 7(3) (2005), 28-36]. Subsequent addition of phenylphosphonic acid to (2) produced two structures from alternative synthetic routes. An ‘in situ’ process yielded red block Cu(I) crystals, [Cu(I)(dmp)2] · [C6H5PO3H2 · C6H5PO3H] (4), whilst recrystallisation of (2) prior to addition of the acid (‘stepwise’ process) produced a green, needle-like Cu(II) complex, [Cu(II)(dmp) · (H2O)2 · C6H5PO2(OH)] [C6H5PO2(OH)] (3). However, addition of excess dmp during the ‘stepwise’ process forced the equilibrium towards product (4) and resulted in an optimum yield (99%). The structure of (4) was similar to the phen analogue, [Cu(II)Cl(phen)2] · [C6H5PO2(OH) · C6H5PO(OH)2] (1) [R. Clarke, K. Latham, C. Rix, M. Hobday, J. White, CrystEngCommun. 7(3) (2005), 28-36], but the presence of dmp exerted some influence on global packing, whilst (3) exists as a polymeric layered material. In contrast, reaction of copper(I) with di-2-pyridyl ketone (dpk), followed by phenylphosphonic acid produced purple/blue Cu(II) species, [Cu(II)(dpk · H2O)2] Cl2 · 4H2O (5), and [Cu(II)(dpk · H2O)2] · [C6H5PO2(OH)2 · C6H5PO(OH)2] (6), respectively, i.e., in both cases oxidation of copper occurred. Solid-state luminescence was observed in (2) and (4). The latter showing a 5-fold enhancement in intensity. 相似文献
5.
A new inorganic-organic supramolecular polymer, i.e. [MoO2Cl2(H2O)2]·Hdpa·Cl·H2O (1) (where Hdpa stands for 2,2′-dipyridylammonium), has been synthesised and characterized, including by single-crystal X-ray diffraction studies. 1 is constituted of inorganic [MoO2Cl2(H2O)2] moieties associated to organic Hdpa units via hydrogen bonds. The combination of hydrogen-bonding and π-π stacking interactions gives rise to a remarkable 3D framework. Compound 1 is an effective catalyst for the H2O2-mediated epoxidation of cyclooctene at 50 °C. 相似文献
6.
The synthesis and spectroscopic characterization of the new symmetric, ligand bis(salicylaldehyde)methyliminodiacetylhydrazone (H4MeImds) is reported. The reactions of H4 MeImds with copper(II) chloride, nitrate and sulfate give trinuclear metal complexes of formula Cu3(MeImds)Cl2 · CHCl3 · H2O, Cu3(MeImds)(NO3)2 · 2H2O and Cu3(MeImds)(SO4) · 8H2O; the trinuclear species are obtained in spite of the used metal:ligand molar ratio. The X-ray crystal structure of [Cu3(MeImds)(SO4)(H2O)3] · 5H2O is determined; it consists of linear units, with the nonadentate ligand bound to three copper ions. The trimetallic units are bridged via sulfate anions to give hexanuclear dimers with an imposed centre of symmetry. The magnetic properties of [Cu3(MeImds)(SO4)(H2O)3] · 5H2O are characterized by a significant antiferromagnetic coupling within the trimetallic units and by a weak antiferromagnetic coupling between them. The analogous trinuclear copper(II) complexes Cu3(HImds)Cl2 · H2O and Cu3(HImds)(SO4) · 4H2O (H5Imds, bis(salicylaldehyde)iminodiacetylhydrazone) were also prepared and spectroscopically characterized. 相似文献
7.
Eric Burkholder 《Inorganica chimica acta》2004,357(1):301-304
The hydrothermal reaction of MoO3, [Cu(CH3CO2)2] · H2O, 2,2′:6′,2″-terpyridine (terpy), H2O3AsC6H5, H2O and H2SO4 yields aqua colored crystals of [{Cu(terpy)}2Mo12O34(O3AsC6H5)4] · 2.25H2O (1 · 2.25H2O). The two-dimensional structure of 1 is constructed from {Mo12O34(O3AsC6H5)4}4− clusters linked through {Cu(terpy)}2+ subunits. Each Cu(II) site exhibits {CuN3O2} coordination geometry and links two adjacent clusters. In turn, each cluster is associated with four Cu(II) sites through {MoO · Cu} interactions. 相似文献
8.
David M. Pham 《Inorganica chimica acta》2005,358(14):4261-4269
The salts - yellow [Cr(NH3)6][Ag(CN)2]3 · 2H2O, red [Co(NH3)6][Ag(CN)2]3 · 2H2O, red [Co(NH3)6][Au(CN)2]3 · 2H2O, pale yellow [Ru(NH3)6][Ag(CN)2]3 · 2H2O, yellow K[Cr(NH3)6]2[Au(CN)2]7 · 4H2O, and colorless [(μ2-NH2)2Pt2(NH3)10][Au(CN)2]6 · 5.5{OS(CH3)2} · 0.5H2O - have been prepared by evaporation of aqueous solutions of potassium dicyanoargenate or potassium dicyanoaurate and salts of the appropriate cations. Hydrogen bonding between the cations and the cyano groups of the anions facilitates the formation of structures with strong metallophilic interactions between the anions. Thus, the [Au(CN)2]− or [Ag(CN)2]− ions self-associate into linear trimers in the isostructural set of crystals, [Cr(NH3)6][Ag(CN)2]3 · 2H2O (Ag?Ag distance; 3.1610(4) Å), [Co(NH3)6][Ag(CN)2]3 · 2H2O (Ag?Ag distance; 3.1557(2) Å), [Co(NH3)6][Au(CN)2]3 · 2H2O (Au?Au distance; 3.0939(4) Å), and [Ru(NH3)6][Ag(CN)2]3 · 2H2O (Ag?Ag distance; 3.1584(5) Å). Crystalline [(μ2-NH2)2Pt2(NH3)10][Au(CN)2]6 · 5.5{OS(CH3)2} · 0.5H2O also contains nearly linear trimers of the dicyanoaurate ion. Yellow crystals of K[Cr(NH3)6]2[Au(CN)2]7 · 4H2O contain a centrosymmetric, bent chain of seven dicyanoaurate ions with Au?Au separations of 3.1806(3), 3.2584(4), and 3.1294(4) Å. 相似文献
9.
Four new three-dimensional materials built from reduced molybdenum(V) phosphates as building blocks and transitional metal (Co, Zn and Cd) complexes as linkers, (Hbpy)2[Co(bpy)(H2O)]2[Co(H2PO4)2 (HPO4)6(MoO2)12(OH)6] (1), [Co(H2O)4]2[Co(Hbpy)(H2O)]2[Co(bpy)][Co(HPO4)4(PO4)4(MoO2)12(OH)6] · 6H2O (2), Na2[Zn(Hbpy)(H2O)2]2[Zn(Hbpy)]2[Zn(HPO4)2(PO4)6(MoO2)12(OH)6] · 4H2O (3), (H2bpy)2[Cd(bpy)(H2O)]2[Cd(bpy)(H2O)2]2[Cd(HPO4)4(PO4)4(MoO2)12(OH)6] · 2H2O (4) (bpy = 4,4′-bipyridine), have been synthesized and characterized by elemental analyses, IR, TG, and single crystal X-ray diffraction. The 3-D framework of 1 is constructed from Co[P4Mo6]2 dimers bonded together with [Co(bpy)]n coordination polymer chains. In compound 2, the Co[P4Mo6]2 dimers are linked by both [Co(bpy)] complex chains and the cobalt dimers to form a 3-D framework. Compounds 1 and 2 represent the first examples of reduced molybdenum(V) phosphates decorated with transition metal complexes chains. The 3-D framework of 3 is constructed from Zn[P4Mo6]2 dimers bonded together with [Zn(bpy)] coordination complexes and [Zn(bpy)(H2O)2] complexes. In compound 4, the Cd[P4Mo6]2 dimers are coordinated with [Cd(bpy)(H2O)] and [Cd(bpy)(H2O)2] complexes to construct a 3-D structure. To our best knowledge, it is the first time that linear ligand 4,4′-bpy molecules have been grafted into the backbone of reduced molybdenum phosphates. Furthermore, the magnetic properties of compounds 1 and 2 are reported. 相似文献
10.
Ten transition metal coordination complexes [Cu2(phen)(p-tpha)(μ-O)]n1, [Cu(m-tpha)(imH)2]n2, [Ni(5-Haipa)2(H2O)2]n3, [Ni(phen)2(H2O)2]·btc·[Ni(H2O)6]0.5·9H2O 4, [Co(2,5-pdc)(H2O)2]n·nH2O 5, [Co2(2,5-pdc)2(H2O)6]n·2nH2O 6, [Fe(2,5-Hpdc)2(H2O)2]·H2O 7, [Co(C6H4NO2)3]·H2O 8, [Fe2(μ2-btec)(μ2-H2btec)(bipy)2(H2O)2]n9, [Mn(phen)(2,5-pdc)(H2O)2]·H2O 10 (H4btec = 1,2,4,5-benzenetetracarboxylic acid, phen = 1,10-phenanthroline, 2,5-H2pdc = 2,5-pyridine-dicarboxylic acid, p-tpha = p-phthalic acid, m-tpha = m-phthalic acid, bipy = 2,2′-bipyridine, 5-H2aipa = 5-aminoisophthalic acid, imH = imidazole, H3btc = 1,3,5-benzenetricarboxylic acid) were synthesized through hydrothermal method. They were characterized by UV-Vis absorption spectra, single-crystal X-ray diffraction and surface photovoltage spectra (SPS). Structural analysis indicated that the complexes 1, 2, 3, 5, 6 and 9 were linked into infinite structures bridged by organic acid ligands. The other four complexes were molecular complexes and further connected to 2D or 3D structures by the hydrogen bonds. The SPS of complexes 1-10 indicate that there are positive response bands in the range of 300-800 nm showing different levels of photo-electric conversion properties. The intensity, position, shape and the number of the response bands in SPS are obviously different since the structure, species, valence, dn electrons configuration and coordinated environment of the center metals are different. There are good relationships between SPS and UV-Vis spectra. 相似文献
11.
The reaction of 1,4-dimethyl-1,4,7-triazacyclononane (L-Me2) with FeSO4 · 7H2O in aqueous ethanol gives, in the presence of sodium carboxylates, hydrogen peroxide, sodium hydroxide and KPF6, the dinuclear Fe(III)-Fe(III) complex cations [(L-Me2)2Fe2(O)(OOCR)2]2+ (R = H: 1, R = CH3: 2, R = C6H5: 3), which crystallise as the hexafluorophosphate salts. The corresponding reaction with RuCl3 · nH2O does not work, however, the analogous Ru(III)-Ru(III) complex [(L-Me2)2Ru2(O)(OOCCH3)2]2+ (5) can be synthesised by reacting Ru(dmso)4Cl2 with L-Me2, HCl and air in refluxing ethanol, followed by addition of sodium acetate, the mononuclear intermediate (L-Me2)RuCl3 · H2O (4) being also isolated and characterised. The reaction of L-Me2, sodium acetate, hydrogen peroxide and triethylamine with CoCl2 · 6H2O in acetonitrile yields, however, the hydroxo-bridged Co(III)-Co(III) complex [(L-Me2)2Co2(OH)(OOCCH3)2]3+ (6). The molecular structures of 2, 5 and 6, solved by single-crystal X-ray structure analyses of the hexafluorophosphate salts, reveal for the orange crystals of [2][PF6]2 a Fe-Fe distance of 3.104(1) Å, for the purple crystals of [5][PF6]2 a Ru-Ru distance of 3.230(1) Å, and for the violet crystals of [6][PF6]3 · (CH3)2CO a Co-Co distance of 3.358(1) Å. All six complexes show catalytic activity for the oxidation of isopropanol with hydrogen peroxide in water to give acetone in the presence of ascorbic acid as co-catalyst. 相似文献
12.
Room temperature reaction of Cu(NO3)2 · 6H2O and pyrazine-2,3,5,6-tetracarboxylic acid (ptecH4) in the presence of pyridine (py) in water-methanol (1:1) mixture results in the formation of {[Cu2(ptec) · (py)2 · (H2O)3] · 4H2O}n (1). With pyridine-2,4,6-tricarboxylic acid (pytcH3) and Cu(NO3)2 · 6H2O, crystals of {[Cu(pytc)] · 1/2[Cu(H2O)6] · H2O}n (2) could be obtained hydrothermally at 180 °C. The structure of 1 consists of 2D polymeric sheets. These sheets are stacked on top of one another due to strong C-H?π interactions forming an overall 3D structure. The structure of 2, on the other hand, consists of twin-chain coordination polymers. The void spaces between two polymeric chains are occupied by [Cu(H2O)6]2+ ions which are H-bonded to the polymeric chains. The variable temperature magnetic measurements for 1 and 2 show weak antiferromagnetic interaction between Cu(II) centers. The EPR spectra of the compounds are consistent with their structures. 相似文献
13.
Two coordination polymers, [Y(H2O)4(H3chhc)]·6H2O (1) and [Cu5(H2O)10(Hchhc)2]·4H2O (2) with H6chhc = cyclohexane-1,2,3,4,5,6-hexacarboxylic acid) represent rare examples of metal complexes with partially protonated cyclohexane-1,2,3,4,5,6-hexacarboxylato ligands. The [Y(H2O)4]3+ units in 1 are interlinked by the triprotonated (H3chhc)3− anions in a η5μ4 bridging mode to form 2D (43)2(46·66·83) topological networks, which are stacked along [0 1 0] direction in ···ABAB··· fashion with the lattice H2O molecules sandwiched between layers. The pentameric [Cu5(H2O)10]10+ units in 2 are bridged by monoprotonated (Hchhc)5− anions in a η8μ6 fashion to generate a 3D MOF of an unprecendented (43)(45·67·83) topology with the lattice H2O molecules in channels. The temperature-dependent magnetic susceptibility data of 2 could be modeled to a combination of a linear chain of equally-spaced Cu(II) ions (J1 = 1.86 cm−1) with an isosceles triangular Cu3 unit (J2 = 5.86 cm−1). 相似文献
14.
Marco H. Klingele 《Inorganica chimica acta》2004,357(11):3413-3417
The reaction of the new bidirectional ligand 3-phenyl-5-(2-pyridyl)-4-(4-pyridyl)-4H-1,2,4-triazole (pyppt) with Cu(ClO4)2 · 6H2O in a 2:1 molar ratio in EtOH affords the complex [CuII(pyppt)2(ClO4)2] · H2O (1) as a microcrystalline turquoise solid. Recrystallisation of complex 1 from MeCN by vapour diffusion of Et2O gives blue crystals of the monomeric octahedral complex [CuII(pyppt)2(ClO4)2] · MeCN (2). In contrast, addition of EtOH to a solution of complex 1 in MeCN followed by slow evaporation yields blue crystals of the five-coordinate polymeric complex {[CuII(pyppt)2](ClO4)2 · EtOH}∞ (3). The structures of both complexes have been determined by single crystal X-ray diffraction. 相似文献
15.
Reactions of MCl2 (M = Mg, Ca, Sr, Ba) and a4-ptz (a4-ptz = 5-[N-acetato (4-pyridyl)] tetrazolate) potassium salt in water, respectively, and produced four new complexes [Mg(H2O)6] · (a4-ptz)2 · 2H2O (1), [Ca(a4-ptz)2(H2O)2]n · 2nH2O (2), [Sr(a4-ptz)2(H2O)2]n · 2nH2O (3), [Ba4(a4-ptz)8(H2O)8]n · 4nH2O (4). These compounds were structurally characterized by elemental analysis, IR spectroscopy and single-crystal X-ray diffraction. Compound 1 has mononuclear structure bearing distinct intermolecular hydrogen-bond interactions to form a three-dimensional supramolecular network. While compounds 2-4 have one-dimensional polymeric chains that are bridged by two water molecules linker, respectively. The luminescence properties of 1-4 were investigated at room temperature in the solid state. 相似文献
16.
Structures of rhodium(II) binuclear complexes [Rh2(OOCCH3)2(bpy)2(H2O){(CH3)2CHOH}][B(C6H5)4]2 · H2O (1), [Rh2Cl2(OOCCH3)2(bpy)2] · 2H2O (2), [Rh2Br2(OOCCH3)2(bpy)2] · 3H2O (3), and [Rh2I2(OOCCH3)2(bpy)2] (4), as well as an unprecedented wire with infinite Rh-Rh chain, {[Rh4(μ-OOCH)4(bpy)4](BF4)}n · 0.5nC4H8O2 (5), have been determined and discussed. Mass spectra of complexes [Rh2(OOCMe)2(bpy)2(H2O)2](MeCOO)2 and [Rh2(OOCMe)2(phen)2(H2O)2](MeCOO)2 have showed stability of polynuclear cations with rhodium in oxidation states in the range +1.25 to +1.75. 相似文献
17.
Dibakar Deb 《Inorganica chimica acta》2011,372(1):286-294
A series of heterobimetallic polymeric complexes of manganese, cobalt, zinc, cadmium and nickel, [M(Mo2O5L2)(MeOH)2(H2O)2]n·nH2O {M = Mn (2), n = 1, Co (3), n = 0, Zn (4), n = 1 and Cd (5), n = 1} and [Ni(Mo2O5L2)(MeOH)(H2O)3]n·2H2O·MeOH (6) have been synthesized form the reaction of [{Na4(H2O)4(μ-H2O)2} ⊂ (Mo2O5L2)2] (1) {LH2 = 2-(3,5-di-tert-butyl-2-hydroxybenzylamino)acetic acid} with the corresponding metal salts. The complexes have been structurally characterized. The Complexes, 3 and 6 undergo thermal decomposition to afford mixed oxides of the type, MMoO4·MoO3 {M = Co or Ni}. 相似文献
18.
Višnja Vrdoljak Jana Pisk Biserka Prugove?ki Dubravka Matkovi?-?alogovi? 《Inorganica chimica acta》2009,362(11):4059-449
New molybdenum complexes were prepared by the reaction of [MoVIO2(acac)2] or (NH4)2[MoVOCl5] with different N-substituted pyridoxal thiosemicarbazone ligands (H2L1 = pyridoxal 4-phenylthiosemicarbazone; H2L2 = pyridoxal 4-methylthiosemicarbazone, H2L3 = pyridoxal thiosemicarbazone). The investigation of monomeric [MoO2L1(CH3OH)] or polymeric [MoO2L1-3] molybdenum(VI) complexes revealed that molybdenum is coordinated with a tridentate doubly-deprotonated ligand. In the oxomolybdenum(V) complexes [MoOCl2(HL1-3)] the pyridoxal thiosemicarbazonato ligands are tridentate mono-deprotonated. Crystal and molecular structures of molybdenum(VI) [MoO2L1(CH3OH)]·CH3OH, and molybdenum(V) complexes [MoOCl2(HL1)]·C2H5OH, as well as of the pyridoxal thiosemicarbazone ligand methanol solvate H2L3·MeOH, were determined by the single crystal X-ray diffraction method. 相似文献
19.
Jun-Feng Lu Qiu-Xuan Zhou Jian-Mei Lu Xue-Wei Xia Yong Zhang 《Inorganica chimica acta》2009,362(10):3401-1003
The influence of coanion on self-assembly of CuSO4 and 4,4′-dipyridyl sulfide (dps) was studied in this paper. During the formation of Cu(II)/dps coordination polymers, coanions Cl−, SCN− and were added in the solution respectively. Three novel coordination polymers were obtained, {[Cu(dps)2 · (SO4)2][Cu(dps) · Cl · (H2O)2]2 · 12H2O}n (1 · 12H2O, a 3D network), {[Cu(SCN)2(dps)(CH3OH)2][Cu(dps)2 · SO4][Cu(dps)(CH3CH2OH)2 · SO4] · 5H2O}n (2 · 5H2O, a 3D network), and {[Cu(dps)2(H2O)2] · (PF6)2 · 3H2O}n (3 · 3H2O, a 2D lattice network). Different coanion shows different influence on framework construction. In 1 and 2, Cl− and SCN− act as terminal ligands and similar 3D frameworks were composed of [Cu(dps)] layer with larger cavity (ca. 400 Å) and sulfate bridge; in 3, replaces entirely and the 3D framework was broken due to the removal of bridging anions. However, a 2D [Cu(dps)]4 undulating grid was preserved in 3. 相似文献
20.
Four copper(II) complexes containing the reduced Schiff base ligands, namely, N-(2-hydroxybenzyl)-glycinamide (Hsglym) and N-(2-hydroxybenzyl)-l-alaninamide (Hsalam) have been synthesized and characterized. The crystal structures of [Cu2(sglym)2Cl2] (1), [Cu2(salam)2(NO3)2] · H2O (3), [Cu2(salam)2(NO3)(H2O)](NO3) · 1.5H2O (4), [Cu2(salam)2](ClO4)2 · 2H2O (5) show that the Cu(II) atoms are bridged by two phenolato oxygen atoms in the dimers. The sglym ligand bonded to Cu(II) in facial manner while salam ligand prefers to bind to Cu(II) in meridonal geometry. Variable temperature magnetic studies of 3 showed it is antiferromagnetic. These Cu(II) complexes and [Cu2(sglym)2(NO3)2] (2), exhibit very small catecholase activity as compared to the corresponding complexes containing acid functional groups. 相似文献