A straightforward method for assigning stereochemical Lambda/Delta descriptors to octahedral coordination compounds
A straightforward method for assigning stereochemical Lambda/Delta descriptors to octahedral coordination compounds
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DOI：
10.1021/ed072p1065
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发表时间：
1995-12-01
影响因子：
3
通讯作者：
Uson, MA
中科院分区：
文献类型：
--
作者：
Herrero, S;Uson, MA
八面体配合物的立体化学是无机研究中的一个重要课题和忙碌领域。对于顺式-双（螯合物）或三（螯合物）八面体络合物，使用螺旋度符号λ或δ，但据我们所知，只有两种方法已被设计用于帮助这些立体化学描述符的分配。这两种方法对学生来说可能都太苛刻了，所以我们开发了一种简单的方法（不依赖于二维图的方向），其中手性来自简单的左右概念，而不需要比较结构的螺旋度。这是一个三维的概念，也可以应用于只含有两个螯合配体的顺式配合物。
The stereochemistry of octahedral coordination compounds is an important subject and a busy field in inorganic research. For the cis-bis(chelate) or tris(chelate) octahedral complexes, the helicity symbols lambda or delta are used but, to the best of our knowledge, only two methods have been devised for helping with the assignment of these stereochemical descriptors. Both of these methods may prove too demanding for students so we have developed a straightforward method (which doesn't depend on the orientation of the two-dimensional drawing), in which the chirality is derived from the simple left-right concept without any need to compare the helicity of the structures. This is a three-dimensional concept that can also be applied to cis complexes containing only two chelate ligands.