Stereochemistry of bivalent tin and lead

ABSTRACT SEVERAL bivalent metals (nickel, palladium, platinum, copper and silver) are known to exhibit a planar distribution of valencies in their quadri-covalent co-ordination compounds. On

the other hand, it has been shown that, in certain derivatives of quadrivalent platinum and univalent copper and silver1, the four valencies of the metal atom have a tetrahedral

arrangement, so that it appears highly probable that the bond distribution of quadri-covalent metals is determined by their principal valency. We have now examined some derivatives of

bivalent tin and lead, and find, in agreement with this view, that they are planar. It is well known that _quadrivalent_ tin and lead, like carbon, silicon and germanium show a tetrahedral

disposition of valencies ; quadrivalent tin is of particular interest, since it furnished one of the first examples2 of optical activity due to an asymmetric atom other than carbon. Access

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April 2025 REFERENCES * Cox, Wardlaw and Webster, _J. Chem. Soc._, 775 (1936); Mann, Purdie and Wells, _J. Chem. Soc._, 1503 (1936). * Pope and Peachey, _Proc. Chem. Soc._, 42, 116 (1900).

Google Scholar  Download references AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * Chemistry Department, University, Birmingham, E. G. Cox, A. J. SHORTER & W. WARDLAW Authors * E. G. Cox

View author publications You can also search for this author inPubMed Google Scholar * A. J. SHORTER View author publications You can also search for this author inPubMed Google Scholar * W.

WARDLAW View author publications You can also search for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Cox, E.,

SHORTER, A. & WARDLAW, W. Stereochemistry of Bivalent Tin and Lead. _Nature_ 139, 71–72 (1937). https://doi.org/10.1038/139071c0 Download citation * Issue Date: 09 January 1937 * DOI:

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