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Article: Structural and spectroscopic studies of some adducts of silver(I) salts with ethylenethiourea.(Report)
- Article from:
- Canadian Journal of Chemistry
- Article date:
- January 1, 2009
- Author:
CopyrightCOPYRIGHT 2009 NRC Research Press. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Introduction
Sulfur-donor ligands derivative of thiourea (tu) have been utilized in a variety of forms to access coordination complexes, most notably of type B or "soft" metal ions. In its simplest form, the ligand is unsubstituted, SC[(N[R.sub.2]).sub.2], R = H, but it may be obtained with diverse R, which may entail incorporation of the nitrogen atoms into heterocyclic rings; these, if saturated, behave as "normal" unidentate donors, but, if unsaturated, aromatic, or otherwise deprotonated, then the now unsubstituted nitrogen atom(s) may also attain donor capability. We exclude these last from present considerations, focussing only on S-donor forms in the ...