Cascade complexation: a single cyano bridge links a pair of Cu(II) cations

被引：23

作者：

Bond, AD

Derossi, SA

Harding, CJ

McInnes, EJL

McKee, V

McKenzie, CJ

Nelson, J

Wolowska, J

机构：

[1] Univ So Denmark, Dept Chem, DK-5230 Odense, Denmark

[2] Open Univ, Dept Chem, Milton Keynes MK7 6AA, Bucks, England

[3] Univ Manchester, EPSRC Natl EPR Serv, Manchester M13 9PL, Lancs, England

[4] Loughborough Univ Technol, Dept Chem, Loughborough LE11 3TU, Leics, England

[5] Univ Ulster, Coleraine BT52 1SA, Londonderry, North Ireland

来源：

DALTON TRANSACTIONS | 2005年 / 14期

关键词：

D O I：

10.1039/b504916d

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A series of structurally characterised mu-cyanodicopper(II) cryptates shows moderately strong antiferromagnetic interaction in the range -2J = 150-200 cm(-1), at the high end of the observed range for such assemblies. The lowest magnetic exchange coupling parameter is displayed where there is slight bending of the M-CN-M assembly, enforced by the constraints of cryptate encapsulation. Thermally accessible triplet EPR spectra are observed with zero-field splittings of the order of 0.13-0.14 cm(-1), confirming collinear ground-state d(z)(2) orbitals for Cu(II), consistent with their trigonal-bipyramidal coordination geometries.

引用

页码：2403 / 2409

页数：7

共 25 条

[1]

BOND AD, 2005, IN PRESS ACTA CRYS C, V66

[2]

BOND AD, IN PRESS INORG CHEM

[3] Architecture dependence on the steric constrains of the ligand in cyano-bridged copper(I) and Copper(II)-Copper(I) mixed-valence polymer compounds containing diamines:: Crystal structures and spectroscopic and magnetic properties [J].

Colacio, E ;

Kivekas, R ;

Lloret, F ;

Sunberg, M ;

Suarez-Varela, J ;

Bardají, M ;

Laguna, A .

INORGANIC CHEMISTRY, 2002, 41 (20) :5141-5149

[4] CASCADE COMPLEXES OF AN OCTAAZA CRYPTAND - COORDINATED AZIDE WITH LINEAR M-NNN-M GEOMETRY [J].

DREW, MGB ;

HUNTER, J ;

MARRS, DJ ;

NELSON, J ;

HARDING, C .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1992, (22) :3235-3242

[5] MIXED-VALENCE COPPER(I)-COPPER(II) COMPOUNDS - ANALYSIS AND CLASSIFICATION OF CRYSTALLOGRAPHIC DATA [J].

DUNAJJURCO, M ;

ONDREJOVIC, G ;

MELNIK, M ;

GARAJ, J .

COORDINATION CHEMISTRY REVIEWS, 1988, 83 :1-28

[6]

Dunbar KR, 1997, PROG INORG CHEM, V45, P283

[7] Cascade chemistry in azacryptand cages: bridging carbonates and methylcarbonates [J].

Dussart, Y ;

Harding, C ;

Dalgaard, P ;

McKenzie, C ;

Kadirvelraj, R ;

McKee, V ;

Nelson, J .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 2002, (08) :1704-1713

[8] Constrained ferromagnetic coupling in dinuclear μ1,3-azido nickel(II) cryptate compounds.: Crystal structure and magnetic behaviour of [Ni2(L1)(N3)(H2O)][CF3SO3]3•2H2O•EtOH {L1 = N[(CH2)2NHCH2(C6H4-m)CH2NH(CH2)2]3N} [J].

Escuer, A ;

Harding, CJ ;

Dussart, Y ;

Nelson, J ;

McKee, V ;

Vicente, R .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1999, (02) :223-227

[9]

FOWLER PW, UNPUB

[10] Cascade complexation of pseudo-halide by dicopper cryptates: A linear Cu-NNN-Cu unit [J].

Harding, CJ ;

Mabbs, FE ;

MacInnes, EJL ;

McKee, V ;

Nelson, J .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1996, (15) :3227-3230

← 1 2 3 →