首页> 美国卫生研究院文献>Acta Crystallographica Section E: Crystallographic Communications >Crystal structures and Hirshfeld surface analysis of κ2-PN-{(C6H5)2(C5H5N)P}Re(CO)3Br·2CHCl3 and the product of its reaction with piperidine P-{(C6H5)2(C5H5N)P}(C5H11N)Re(CO)3Br
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Crystal structures and Hirshfeld surface analysis of κ2-PN-{(C6H5)2(C5H5N)P}Re(CO)3Br·2CHCl3 and the product of its reaction with piperidine P-{(C6H5)2(C5H5N)P}(C5H11N)Re(CO)3Br

机译:κ2-PN-{(C6H5)2(C5H5N)P} Re(CO)3Br·2CHCl3的晶体结构和Hirshfeld表面分析及其与哌啶的反应产物P-{(C6H5)2( C5H5N)P}(C5H11N)Re(CO)3Br

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摘要

The coordination of the ligands with respect to the central atom in the complex bromido­tricarbon­yl[diphen­yl(pyridin-2-yl)phosphane-κ2 N,P]rhenium(I) chloro­form disolvate, [ReBr(C17H14NP)(CO)3]·2CHCl3 or [κ2-P,N-{(C6H5)2(C5H5N)P}Re(CO)3Br]·2CHCl3, (>I·2CHCl3), is best described as a distorted octa­hedron with three carbonyls in a facial conformation, a bromide atom, and a biting P,N-di­phenyl­pyridyl­phosphine ligand. Hirshfeld surface analysis shows that C—Cl⋯H inter­actions contribute 26%, the distance of these inter­actions are between 2.895 and 3.213 Å. The reaction between >I and piperidine (C5H11N) at 313 K in di­chloro­methane leads to the partial decoord­ination of the pyridyl­phosphine ligand, whose pyridyl group is replaced by a piperidine mol­ecule, and the complex bromido­tricarbon­yl[diphen­yl(pyridin-2-yl)phosphane-κP](piperidine-κN)rhenium(I), [ReBr(C5H11N)(C17H14NP)(CO)3] or [P-{(C6H5)2(C5H5N)P}(C5H11N)Re(CO)3Br] (>II). The mol­ecule has an intra­molecular N—H⋯N hydrogen bond between the non-coordinated pyridyl nitro­gen atom and the amine hydrogen atom from piperidine with D⋯A = 2.992 (9) Å. Thermogravimetry shows that >I·2CHCl3 losses 28% of its mass in a narrow range between 318 and 333 K, which is completely consistent with two solvating chloro­form mol­ecules very weakly bonded to >I. The remaining >I is stable at least to 573 K. In contrast, >II seems to lose solvent and piperidine (12% of mass) between 427 and 463 K, while the additional 33% loss from this last temperature to 573 K corresponds to the release of 2-pyridyl­phosphine. The contribution to the scattering from highly disordered solvent mol­ecules in >II was removed with the SQUEEZE routine [Spek (2015). Acta Cryst. C71, 9-18] in PLATON. The stated crystal data for M r, μ etc. do not take this solvent into account.
机译:溴化三羰基[二苯基(吡啶-2-基)膦-κ 2 N,P] r(I)氯仿二溶剂化物[ReBr(C17H14NP)中的配体相对于中心原子的配位)(CO)3]·2CHCl3或[κ 2 -P,N-{(C6H5)2(C5H5N)P} Re(CO)3Br]·2CHCl3,(> I 2CHCl3),最好描述为扭曲的八面体,在面部构象中带有三个羰基,一个溴原子和一个咬合的P,N-二苯基吡啶基膦配体。 Hirshfeld表面分析表明,C-Cl⋯H相互作用占26%,这些相互作用的距离在2.895至3.213Å之间。 > I 与哌啶(C5H11N)在二氯甲烷中于313 K的反应导致吡啶基膦配体(吡啶基被哌啶分子取代)的部分解配,并形成了溴化三羰基[二苯基(吡啶基- 2-基)膦-κP](哌啶-κN)r(I),[ReBr(C5H11N)(C 17 H 14 NP)(CO) 3 ]或[P-{(C 6 H 5 2 (C 5 H 5 N)P}(C 5 H 11 N)Re(CO) 3 Br]( > II )。该分子在非配位的吡啶基氮原子与来自哌啶的胺氢原子之间具有分子内NH 3 N氢键,D⋯A = 2.992(9)Å。热重分析表明,> I ·2CHCl 3 在318至333 K的较窄范围内损失了其质量的28%,这与两个弱结合于其上的溶剂化氯仿分子完全一致>我。其余的> I 至少稳定在573K。相反,> II 在427至463 K之间似乎失去了溶剂和哌啶(占质量的12%),而另外的从最后温度到573 K的33%损失对应于2-吡啶基膦的释放。使用SQUEEZE例程删除了> II 中高度无序的溶剂分子对散射的贡献[Spek(2015)。 Acta Cryst。 C71,9-18]。 M r ,μ等的规定晶体数据未考虑该溶剂。

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