M5M – Key compounds of the research field metal–metal quintuple bonding
M5M – Key compounds of the research field metal–metal quintuple bonding
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DOI：
10.1016/j.ica.2014.08.030
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发表时间：
2015
影响因子：
2.8
通讯作者：
A. Noor;R. Kempe
中科院分区：
文献类型：
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作者：
A. Noor;R. Kempe
自2005年Power等人首次发现稳定的五重键铬二聚体Ar′CrCrAr′（Ar′ = 2，6-（2，6-iPr 2C 6 H3）2C 6 H3）以来，高键级分子化学经历了一次复兴，并再次成为一个新兴领域。一些稳定的铬和钼的同双金属化合物，主要含有空间体积庞大的N-配体已被分离和实验和理论研究在这一复兴。一方面，它导致了具有超短金属-金属距离的配合物，以及对如何合理调整键长的理解，包括缩短概念的局限性。另一方面，储存10个电子的电子束平台的反应性引起了意想不到的反应模式。最近，它表明，五重键不限于同双金属VI族金属和杂原子铬锰络合物已被报道。本文综述了五重键研究领域的关键化合物。
Since, the isolation of the first stable formally quintuple bonded chromium dimer Ar′CrCrAr′ (Ar′ = 2,6-(2,6-iPr2C6H3)2C6H3) in 2005 by Power and coworkers, the chemistry of high bond order molecules has experienced a renaissance and again has become an emerging field. A number of stable homobimetallic compounds of chromium and molybdenum, containing mostly sterically bulky N-ligands have been isolated and experimentally and theoretically studied within this renaissance. On one hand, it has led to complexes with ultrashort metal–metal distances and an understanding of how the bond length can be rationally tuned, inclusive of the limitations of the shortening concept. On the other hand, the reactivity of the bimetallic platform that stores 10 electrons gave rise to unexpected reactivity patterns. Very recently, it was shown that quintuple bonding is not limited to homobimetallic group VI metals and a heterobimetallic Cr–Mn complex has been reported. In this review, key compounds of the research field of quintuple bonding are discussed.