Tin Tetrahalide Complexes with Tetraethyl Propylenediphosphonate

Article type: Research Article

Authors: Grigoriev, E.V. | Yashina, N.S. | Petrosyan, V.S. | Lorberth, J. | Massa, W. | Wocadlo, S.

Affiliations: Department of Chemistry, Moscow State University, 119 899 Moscow, Russia | Fachbereich Chemie, Philipps-University, D-35032 Marburg/Lahn, Germany

Note: [] Corresponding Author.

Abstract: Tin-119 and phosphorus-31 NMR spectra have been recorded for three tin tetrahalide complexes with tetraethyl propylenediphosphonate SnX4·L, where L = (EtO)2P(O)CH2 CHMeP(O) (OEt)2, X = Cl(1); X = Br (2); X = I(3). Each complex exists in solution in the form of only one isomer with two different phosphoryl units coordinated at tin. The crystal structure of SnCl4·L (1) has been determined. The complex has a monomeric 7-membered chelate structure with octahedral epvironment at tin. It crystallizes in the monoclinic space group P21/n with a = 9.531(2) Å, b = 16.556(3)Å, c = 14.634(3) Å, β = 98.73(3)°, Z = 4, dcalc = 1.678 Mg/m3, Nobs = 2813, R = 0.045

DOI: 10.1080/13583149712331338909

Journal: Main Group Chemistry, vol. 2, no. 1, pp. 73-78, 1997