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两种新型锡双（碳硼烷脒基）配合物的合成与晶体结构

Synthesis and crystal structures of two new tin bis-(carboranylamidinate) complexes.

作者信息

Harmgarth Nicole, Liebing Phil, Hillebrand Philipp, Busse Sabine, Edelmann Frank T

机构信息

Chemisches Institut der Otto-von-Guericke-Universität Magdeburg, Universitätsplatz 2, 39106 Magdeburg, Germany.

ETH Zurich, Laboratory for Inorganic Chemistry, Vladimir-Prelog-Weg 1-5/10, 8093, Zurich, Switzerland.

出版信息

Acta Crystallogr E Crystallogr Commun. 2017 Sep 12;73(Pt 10):1443-1448. doi: 10.1107/S2056989017012671. eCollection 2017 Oct 1.

DOI:10.1107/S2056989017012671
PMID:29250355
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5730292/
Abstract

Reaction of 2 equiv. of the lithium carboranylamidinate Li[-(CHB)C(NCy)(NHCy)] with SnCl in THF afforded the stannylene compound bis(,'-dicyclohexylamidinatocarboranate)tin(II), Sn[-(CHB)C(NCy)(NHCy)] (). A similar reaction of SnCl with 2 equiv. of Li[-(CHB)C(N Pr)(NH Pr)] unexpectedly afforded the known solvated penta-chlorido-stannate(IV) salt [Li(THF)][SnCl(THF)] as the main reaction product. Small amounts of the new chlorido-tin(IV) bis-(carboranylamidinate) bis(,'-diiso-propylamidinatocarboranate)chloridotin(IV), SnCl[-(CHB)C(N Pr)(NH Pr)][-(CHB)C(N Pr)] (), were isolated as a by-product. Single-crystal X-ray structure analysis revealed a ,-chelating coordination of the carboranylamidinate ligands in both and . The Sn atom in adopts a pseudo-trigonal-bipyramidal coordination under participation of a stereoactive lone pair. In , a trigonal-bipyramidal coordination of Sn is completed by a chlorido ligand.

摘要

2当量的锂碳硼烷脒基锂Li[-(CHB)C(NCy)(NHCy)]与SnCl在四氢呋喃中反应，得到亚锡烯化合物双(,'-二环己基脒基碳硼烷酸根)锡(II)，Sn[-(CHB)C(NCy)(NHCy)] ()。SnCl与2当量的Li[-(CHB)C(N Pr)(NH Pr)]的类似反应意外地得到了已知的溶剂化五氯锡酸(IV)盐[Li(THF)][SnCl(THF)]作为主要反应产物。少量新的氯锡(IV)双(碳硼烷脒基)双(,'-二异丙基脒基碳硼烷酸根)氯化锡(IV)，SnCl[-(CHB)C(N Pr)(NH Pr)][-(CHB)C(N Pr)] ()作为副产物被分离出来。单晶X射线结构分析表明，在 和 中碳硼烷脒基配体均为 ,-螯合配位。 中的Sn原子在一个立体活性孤对的参与下采取伪三角双锥配位。在 中，Sn的三角双锥配位由一个氯配体完成。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9739/5730292/84e44f9f76f3/e-73-01443-fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9739/5730292/b89800aad3e6/e-73-01443-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9739/5730292/97fbc95dd963/e-73-01443-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9739/5730292/c69b62a2dfec/e-73-01443-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9739/5730292/84e44f9f76f3/e-73-01443-fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9739/5730292/b89800aad3e6/e-73-01443-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9739/5730292/97fbc95dd963/e-73-01443-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9739/5730292/c69b62a2dfec/e-73-01443-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9739/5730292/84e44f9f76f3/e-73-01443-fig4.jpg

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