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首页> 外文期刊>Journal of chemical crystallography >Carboxylato molybdenum(V) complexes: X-ray structures of the dinuclear pivalato complexes
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Carboxylato molybdenum(V) complexes: X-ray structures of the dinuclear pivalato complexes

机译：羧钼（V）配合物：双核新戊酸酯配合物的X射线结构

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摘要

Mononuclear molybdenum(V) starting material, (PyH)_5[MoOCl_ 4(H_2O)]_3Cl_2 (where PyH~+ stands for pyridinium cation, C_5H_5NH~+), reacted with triethylammonium or pyridinium salt of pivalic acid (dimethylpropanoic acid) to form two dinuclear molybdenum(V) compounds with the (PyH)_ 2[Mo_2O_4Cl_3(Py)(Piv)] (1) and (PyH)[Mo_2O_4Cl_2(Py)_2(Piv)] ·CH_3CN (2) (Py = pyridine, Piv~- = a deprotonated form of dimethylpropanoic acid) compositions. Compound 1 crystallized in the triclinic P1? P 1 ? space group with a = 9.52110(10) ?, b = 10.89790(10) ?, c = 14.5665(2) ?, α = 109.6310(6), β = 93.2646(7) and γ = 111.8670(7). Compound 2 crystallized in the orthorhombic P nam space group with a = 10.67530(10) ?, b = 12.7801(2) ? and c = 20.1379(3) ?. X-ray structural analysis confirmed that the anions of both products consist of the central {Mo_2O_ 4}~(2+) core with the pivalato ligands coordinated to the sites which are trans to the terminal oxides. Because of a different pyridine/chloride content in the complex anions of 1 and 2, the metal-metal bond lengths also differ. Graphical Abstract: Reaction of mononuclear molybdenum(V) starting material with pivalate resulted in (PyH)_2[Mo_ 2O_4Cl_3(Py)(Piv)] (1) and (PyH)[Mo_ 2O_4Cl_2(Py)_2(Piv)]·CH_ 3CN (2) with the carboxylate coordinated as a bridging ligand to a pair of metal ions of the {Mo_2O_4}~(2+) core. [Figure not available: see fulltext.]
机译：单核钼（V）原料（PyH）_5 [MoOCl_4（H_2O）] _ 3Cl_2（其中PyH〜+代表吡啶鎓阳离子，C_5H_5NH〜+）与新戊酸（二甲基丙酸）的三乙基铵或吡啶鎓盐反应形成两个具有（PyH）_ 2 [Mo_2O_4Cl_3（Py）（Piv）]（1）和（PyH）[Mo_2O_4Cl_2（Py）_2（Piv）]·CH_3CN（2）（Py =吡啶， Piv-=去质子化形式的二甲基丙酸组合物。化合物1在三斜晶系P1中结晶。 P 1？ a = 9.52110（10）？，b = 10.89790（10）？，c = 14.5665（2）？，α= 109.6310（6），β= 93.2646（7）和γ= 111.8670（7）的空间群。化合物2在正交晶体P nam空间群中结晶，其a = 10.67530（10）α，b = 12.7801（2）α。并且c = 20.1379（3）？。 X射线结构分析证实，两种产物的阴离子均由中心{Mo_2O_4}〜（2+）核组成，新戊酸酯配体配位至末端氧化物的位点。由于1和2的复合阴离子中吡啶/氯化物的含量不同，金属-金属键长也不同。图形摘要：单核钼（V）原料与新戊酸酯的反应生成（PyH）_2 [Mo_2 2O_4Cl_3（Py）（Piv）]（1）和（PyH）[Mo_2O_4Cl_2（Py）_2（Piv）]·CH_ 3CN（2），其中羧酸盐作为桥接配体与{Mo_2O_4}〜（2+）核的一对金属离子配位。 [图不可用：请参见全文。]

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