Stereochemistry of lead(II) complexes containing sulfur and selenium donor atom ligands

A quantum chemical study of lead(II) thiocomplexes with mono- and bidentate ligands

“…In accordance with [3], cn of the Pb atom can be presented in the form (k+E)+m, where k is the number of S donor atoms involved in the first coordination sphere of the Pb atom, m is the number of those in the secondary sphere, E is stereochemically active LEP. The limiting distance of 3.130-3.140 Å (Table 1), calculated for [Pb(L 1,2 ) n ] 2-n complexes with n = 6 and governing the Pb-S chemical bond, is consistent with the empirical determination of the primary coordination sphere in [3].…”

“…In this work, we present the results of local density functional calculations of model lead(II) complexes [Pb(L 1,2 ) n ] 2-n with monodentate L 1 ((SC 6 H 5 ) -) and bidentate L 2 ((S 2 CN(CH 3 complex organic compounds of Pb(II) and compare the regularities of changes in the stereochemical activity of Pb LEP in the structures with those calculated for model thiocomplexes.…”

“…Complex compounds of lead(II) with organic ligands containing sulfur donor atoms have recently been studied intensely due to their important practical properties [1,2] and also interesting stereochemical features of this class of compounds [3]. The latter has mostly been determined by the structure of the Pb 2+ ion ([Xe]4f 14 5d 10 6s 2 ), involving the 6s 2 lone electron pair (LEP, E).…”

Sonochemical synthesis of tri-nuclear lead(II)-azido nano rods coordination polymer with 3,4,7,8-tetramethyl-1,10-phenanthroline (tmph): Crystal structure determination and preparation of nano lead(II) oxide

“…The design and synthesis of coordination polymers are of continuing interest for developing new molecular-based functional materials [1][2][3]. Bridging ligands link two or more metal ions, http giving rise to a variety of 0-, 1-, 2-, and 3-D polynuclear compounds [4,5].…”

Structural chemistry of fluoride and oxofluoride complexes of titanium(IV)

“…This work is a continuation of our ongoing systematic studies of stereochemistry and structural chemistry of group IV and V metal complexes bearing various ligands, including fluoride and oxofluoride complexes [1][2][3][4][5][6]; specifically, here we analyze and rationalize the structural peculiarities of fluoride and oxofluoride complexes of titanium(IV). These compounds represent an important family of solid materials displaying a wide variety of properties and interesting phenomena.…”