1446412-05-0Relevant articles and documents
Hypervalent triorganolead(iv) dithiocarbamates containing a 2-(me2nch2)c6h4 group. crystal and molecular structure of [2-(Me2NCH2)C6H4]Ph2PbS(S)CNR2 (R = Me, Et)
Cristea, Adina,Silvestru, Anca,Margineanu, Dragos,Silvestru, Cristian
, p. 305 - 312 (2013/04/23)
Two new triorganolead(IV) dithiocarbamates, [2-(Me2NCH2)C6H4]Ph2PbS(S)CNR2 [R = Me (1), Et (2)] were prepared by reacting [2-(Me2NCH2)C6H4]Ph2PbI with the corresponding sodium dithio ligand. Both compounds were characterized by multinuclear NMR solution studies and their crystal and molecular structure was established by single-crystal X-ray diffraction. In both cases the nitrogen atom from the pendant Me2NCH2 arm is coordinated intramolecularly to the metal centre [Pb(1)-N(1) 2.788(5) A in 1 and 2.764(11) A in 2, respectively] in trans to a sulfur atom [S(1)-Pb(1)-N(1) 168.89(10) in 1 and 170.3(2) in 2, respectively]. This results in a distorted trigonal bipyramidal geometry around the lead atom of hypervalent 10-Pb-5 species. Compounds 1 and 2 crystallize as 1:1 mixtures of RN1- and SN1-isomers (planar chirality induced by the non-planar PbC3N chelate ring). In the crystals weak intermolecular S··H and C-H··π (Phcentroid) contacts result in different supramolecular architectures.