Tin Organometallic Compounds: Classification and Analysis of Crystallographic and Structural Data: Part 1. Monomeric Derivatives

Hypervalent CompoundsBased in part on the article Indium: Inorganic Chemistry by Dennis G. Tuck which appeared in the Encyclopedia of Inorganic Chemistry, First Edition .

“…An attractive interaction appears to occur between the (η 2 -H 2 ) and H ligands. This interaction seems to be different in nature to that proposed for representation (40), with little or no changes evident in the bond lengths of the (η 2 -H 2 ) and M-H moieties. Rather is it probably an electrostatic interaction, with the negatively charged hydride H atom being attracted + .…”

“…87 This complex displays a long Si-F bond; Crabtree suggested that this arose from donation of electron density from the Mn-H bond into the suitably disposed Si-F σ * orbital (40), with the Si atom adopting a tbp geometry. Thus, instead of viewing the M-Si-H moiety as resulting from arrested oxidative addition, addition is considered to be complete and a secondary back-interaction occurs between the resulting silane and hydride ligands.…”

“…36 The Si atom adopts a tbp geometry, with a ligand such as Cl trans to the interacting hydride. Donation of electron density from the M-H bond can then occur into the Si-Cl σ * orbital, in the manner described above for (40). Example (43), in which an M-H unit simultaneously interacts with two Si centers, can also be considered to be held together by a 5c/6e bond (q.v.…”

Syntheses, characterizations, and crystal structures of organotin(IV) chloride complexes with 4,4′‐bipyridine

“…Seen from the Table 5, both Sn N bond lengths in (4) and (6) are all shorter than those in complexes (1) and (2), shorter Sn N bond lengths 2.33(2) for (4) and 2.359(4) for (6) [29]. The Sn Cl distances are 2.564(8) and 2.566(6)Å for (4), 2.5429(10)Å for (6), longer than those found in (SnPh 2 Cl 2 ·Pyz) n (n = ∞) (2.404(4) and 2.379(4)Å) [30], the Sn C distances are 2.120(12), 2.13(3)Å for (4) and 2.169(4)Å for (6), in the range found for other dialkyltindichloride complexes with bidentate N,N -donor ligands [31].…”

Synthesis and characterisation of dialkyltin 2,3-bis(diphenylphosphino)maleic acid adducts

“…The solid-state structures of trialkyltin(IV) carboxylates can be either monomeric [8], oligo-and polymeric [9] or cyclooligomeric [10], whereby the oligo-and polymeric structures are formed through intermolecular Sn-O-C@O ! Sn bonds.…”