Bis(μ-naphthalene-1,8-dicarboxyl-ato-κO:O)bis-[aqua-bis-(N,N'-dimethyl-formamide-κO)copper(II)]

Jun-Dan Fu; Chun-Yan Zhang; Qing-Yu Shi; Yi-Hang Wen

doi:10.1107/S1600536810028497

Bis(μ-naphthalene-1,8-dicarboxyl-ato-κO:O)bis-[aqua-bis-(N,N'-dimethyl-formamide-κO)copper(II)]

Acta Crystallogr Sect E Struct Rep Online. 2010 Jul 24;66(Pt 8):m1003-4. doi: 10.1107/S1600536810028497.

Authors

Jun-Dan Fu¹, Chun-Yan Zhang, Qing-Yu Shi, Yi-Hang Wen

Affiliation

¹ Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, Zhejiang 321004, People's Republic of China.

Abstract

In the centrosymmetric dinuclear title complex, [Cu(2)(C(12)H(6)O(4))(2)(C(3)H(7)NO)(4)(H(2)O)(2)], the coordination environment of each Cu(II) atom displays a distorted CuO(5) square-pyramidal geometry, which is formed by two carboxyl-ate O atoms of two μ-1,8-nap ligands (1,8-nap is naphthalene-1,8-dicarboxyl-ate), two O atoms of two DMF (DMF is N,N'-dimethyl-formamide) and one coordinated water mol-ecule. The Cu-O distances involving the four O atoms in the square plane are in the range 1.9501 (11)-1.9677 (11) Å, with the Cu atom lying nearly in the plane [deviation = 0.0726 (2) Å]. The axial O atom occupies the peak position with a Cu-O distance of 2.885 (12) Å, which is significantly longer than the rest of the Cu-O distances. Each 1,8-nap ligand acts as bridge, linking two Cu(II) atoms into a dinuclear structure. Inter-molecular O-H⋯O and C-H⋯O hydrogen-bonding inter-actions consolidate the structure.