Ge Xin, Song Shu-Yan
State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2012 Oct 1;68(Pt 10):m1307. doi: 10.1107/S1600536812040056. Epub 2012 Sep 26.
In the title compound, {[Co(C(8)H(4)O(4))(C(10)H(8)N(2)O(2))(H(2)O)(2)]·C(10)H(8)N(2)O(2)}(n), the Co(II) atom, lying on an inversion center, is hexa-coordinated in a distorted octa-hedral geometry defined by two O atoms from two terephthalate (tp) ligands, two O atoms from two 4,4'-bipyridine N,N'-dioxide (bpydo) ligands and two water mol-ecules. The coordinated tp and bpydo ligands and uncoordinated bpydo mol-ecule all have an inversion center. The Co(II) atoms are connected by the tp and bpydo ligands into a layer parallel to (111). In the crystal, O-H⋯O hydrogen bonds link the uncoordinated bpydo mol-ecules and the layers into a three-dimensional supra-molecular structure. Intra-layer O-H⋯O hydrogen bonds and π-π inter-actions [centroid-to-centroid distances = 3.6643 (13) and 3.8048 (13) Å] are also observed.
在标题化合物{[Co(C₈H₄O₄)(C₁₀H₈N₂O₂)(H₂O)₂]·C₁₀H₈N₂O₂}ₙ中，位于对称中心的Co(II)原子由来自两个对苯二甲酸（tp）配体的两个O原子、来自两个4,4'-联吡啶N,N'-二氧化物（bpydo）配体的两个O原子以及两个水分子以扭曲的八面体几何构型六配位。配位的tp和bpydo配体以及未配位的bpydo分子均具有对称中心。Co(II)原子通过tp和bpydo配体连接成平行于(111)的层。在晶体中，O—H⋯O氢键将未配位的bpydo分子与这些层连接成三维超分子结构。还观察到层内O—H⋯O氢键和π—π相互作用[质心到质心距离 = 3.6643 (13) 和3.8048 (13) Å]。
