Tin(II) thiocyanate and complex thiocyanates

Abstract
The preparation and properties of pure tin(II) thiocyanate and of several complex thiocyanates are described. Their infrared spectra are discussed and evidence is adduced for mainly N-bonding of the thiocyanate, with extensive bridging in Sn(NCS)2. Tin(II) thiocyanate is found to form ether adducts of poor stability and to be an effective catalyst for polyurethane foam formation. X-Ray powder data are given for Sn(NCS)2, KSn(SO)4NCS, CsSn(NCS)3, Me4NSn(NCS)3, and Et4NSn(NCS)3.

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