A novel μ4-oxo bridged copper tetrahedron derived by self-assembly:: First example of double helical bis(tridentate) coordination of a hexadentate amine phenol ligand

被引：57

作者：

Bera, M

Wong, WT

Aromi, G

Ribas, J

Ray, D ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Chem, Kharagpur 721302, W Bengal, India

[2] Univ Hong Kong, Dept Chem, Hong Kong, Hong Kong, Peoples R China

[3] Univ Barcelona, Dept Quim Inorgan, E-08028 Barcelona, Spain

来源：

INORGANIC CHEMISTRY | 2004年 / 43卷 / 16期

关键词：

D O I：

10.1021/ic049817+

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In methanol, the reaction of Cu(ClO4)(2).6H(2)O and the hexadentate amine phenol ligand (H(2)bahped) in the presence of triethylamine affords a tetranuclear copper(II) complex having, the formula [Cu-4(mu(4)-O)(bahped)(2)](ClO4)(2). The X-ray structure of this complex shows a tetrahedral central {Cu-4(II)(mu(4)-O)} unit coordinated to two hexadentate bridging (via the central ethylenediamine part) ligands. The compound is the first example of a mu(4)-OXO tetranuclear copper(II) complex without any bridging ligand along the six tetrahedral edges. Variable-temperature magnetic data clearly show an S-t = 0 spin ground state for antiferromagnetic interactions between four B-2(2) copper(II) ions in a dimer of dimers.

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页码：4787 / 4789

页数：3

相关论文

共 27 条

[1] Magnetostructural characterization of μ4-oxohexa-μ2-chlorotetrakis(imidazole)copper(II) [J].

Atria, AM ;

Vega, A ;

Contreras, M ;

Valenzuela, J ;

Spodine, E .

INORGANIC CHEMISTRY, 1999, 38 (25) :5681-5685

[2]

BERA MN, COMMUNICATION

[3]

BEURSKENS PT, 1992, DIRDIF PROGRAM SYSTE

[4] Inelastic neutron scattering measurements on [Cu4OCl6L4] (L equals pyridine or dimethyl sulfoxide). Observation of zero-field splitting of the cluster ground state [J].

Blake, AB ;

Anson, CE ;

arapKoske, SK ;

Cannon, RD ;

Jayasooriya, UA ;

Saad, AK ;

White, RP ;

Summerfield, D .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1997, (12) :2039-2043

[5]

Carlin R. L, 1986, MAGNETOCHEMISTRY

[6] POLYNUCLEAR COPPER LANTHANIDE COMPLEXES WITH AMINO ALCOHOL LIGANDS - SYNTHESES, STRUCTURES, AND MAGNETIC AND SPECTROSCOPIC STUDIES OF CUII(BDMMP)2(H2O), PRIIICUII(BDMMP)(BDMMPH)(MU-OH)(HFACAC)3, [LAIIICUII(BDMMP)(BDMMPH)(MU-OH)(O2CCF3)3]2, AND CUII4(BDMMP)2(MU-4-O)(O2CCF3)4, (BDMMPH = 2,6-BIS[(DIMETHYLAMINO)METHYL]-4-METHYLPHENOL - HFACAC = HEXAFLUOROACETYLACETONATO) [J].

CHEN, LQ ;

BREEZE, SR ;

ROUSSEAU, RJ ;

WANG, SN ;

THOMPSON, LK .

INORGANIC CHEMISTRY, 1995, 34 (02) :454-465

[7] EXCHANGE INTERACTION IN MULTINUCLEAR TRANSITION-METAL COMPLEXES .5. THROUGH-BOND EXCHANGE COUPLING IN CU2A(CH3COO)2.2CH3OH (A2- = ANION OF N,N'-BIS(2-((ORTHO-HYDROXYBENZHYDRYLIDENE)AMINO)ETHYL)PIPERAZINE) [J].

CHIARI, B ;

PIOVESANA, O ;

TARANTELLI, T ;

ZANAZZI, PF .

INORGANIC CHEMISTRY, 1984, 23 (16) :2542-2547

[8] Novel mixed-valence vanadium(IV/V) molecule exhibiting unusual electron delocalization over the [V2O3](3+) core [J].

Copeland, EP ;

Kahwa, IA ;

Mague, JT ;

McPherson, GL .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1997, (16) :2849-2852

[9] Spontaneous carbon dioxide fixation:: a μ4-carbonate bridged tetranuclear zinc(II) complex of a heptadentate Schiff base [J].

Fondo, M ;

García-Deibe, AM ;

Bermejo, MR ;

Sanmartín, J ;

Llamas-Saiz, AL .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 2002, (24) :4746-4750

[10]

GATTESCHI D, 1993, GAZZ CHIM ITAL, V123, P231