Hsuan Rachel E, Hughes Jemma E, Miller Thomas H, Shaikh Nabila, Cunningham Phoebe H M, O'Connor Alice E, Tidey Jeremiah P, Blake Alexander J
School of Chemistry, The University of Nottingham, University Park, Nottingham NG7 2RD, England.
Acta Crystallogr Sect E Struct Rep Online. 2014 Oct 29;70(Pt 11):m380-1. doi: 10.1107/S1600536814023332. eCollection 2014 Nov 1.
Two independent mol-ecules of the title solvated complex, [V(C16H14N2O2)O]·CH3OH, also known as [N,N'-bis-(salicyl-idene)ethyl-enedi-amine]-oxidovanadium(IV) or vanadyl salen, crystallize in the asymmetric unit. Each disordered methanol solvent mol-ecule [occupancy ratios 0.678 (4):0.322 (4) and 0.750 (5):0.250 (5)] is linked to a [N,N'-bis-(salicyl-idene)ethyl-enedi-amine]-oxidovanadium(IV) mol-ecule by an O-H⋯O hydrogen bond and to others by C-H⋯O hydrogen bonds. The resulting extended structure consists of a bilayer of mol-ecules parallel to the ab plane. Despite the fact that solvates are common in complexes derived from substituted analogues of the N,N'-bis-(salicyl-idene)ethyl-enedi-amine ligand, the title solvate is the first one of [N,N'-bis-(salicyl-idene)ethyl-enedi-amine]-oxidovanadium(IV) to be structurally characterized. The two vanadyl species have very similar inter-nal geometries, which are best characterized as distorted square-based pyramidal with the vanadium atom displaced from the N2O2 basal plane by 0.5966 (9) Å in the direction of the doubly-bonded oxide ligand.
标题溶剂化配合物[V(C₁₆H₁₄N₂O₂)O]·CH₃OH（也称为[N,N'-双-(水杨醛亚基)乙二胺]-氧化钒(IV)或钒酰双水杨醛缩乙二胺）的两个独立分子在不对称单元中结晶。每个无序的甲醇溶剂分子（占有率分别为0.678 (4):0.322 (4)和0.750 (5):0.250 (5)）通过O—H⋯O氢键与一个[N,N'-双-(水杨醛亚基)乙二胺]-氧化钒(IV)分子相连，并通过C—H⋯O氢键与其他分子相连。由此产生的扩展结构由平行于ab平面的分子双层组成。尽管在由N,N'-双-(水杨醛亚基)乙二胺配体的取代类似物衍生的配合物中溶剂化物很常见，但标题溶剂化物是第一个通过晶体结构表征的[N,N'-双-(水杨醛亚基)乙二胺]-氧化钒(IV)溶剂化物。这两种钒酰物种具有非常相似的内部几何结构，其最佳特征为扭曲的四方锥，钒原子在双键氧化物配体的方向上从N₂O₂基面位移0.5966 (9) Å。
