Oxy- and thio-phosphorus acid derivatives of tin(IV). The crystal and molecular structure of O-methylmethylphosphatotriphenyltin(IV)

Chiral self-assembly of methyltin(IV)-naproxenates: Combining dative Sn–O bonds, secondary Sn⋯O interactions and C–H⋯O hydrogen bonding to make an inter-helical meander-shaped network and a cross-linked Z-shaped ribbon

“…In 1988, Lockhart established that the di-n-butyltin(IV) 3-thiopropionate exists in either oligomeric or monomeric form in solution and crystallizes as a cyclic hexamer [2]. Interestingly, in spite of these early findings only few organotin(IV)-macrocycles have been created [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18], whereas a rich structural chemistry of stannoxane and distannoxane units containing supramolecules has been emerged [19][20][21][22][23][24][25][26][27][28][29]. Our entry in the field of organotin supramolecular chemistry began in 4 [30] and dimeric [Me 2 Sn(PhN 2 O 2 ) 2 ] 2 [31].…”

Di-n-butyltin Methyl- and Phenylphosphonates

“…3,5 In contrast with tin carboxylates, a much less clear picture on the structural coordination chemistry of organotin phosphonates was developed over the years, despite recent reports on a rich organometallic and inorganic phosphonate chemistry for numerous metals, including tin(II) and tin(IV), which give rise to layered and/or microporous (open-framework) materials, [6][7][8][9][10][11][12][13][14][15] molecular cages, 8,16,17 or Langmuir-Blodgett films. Organotin derivatives that involve phosphates, [19][20][21][22][23][24] phosphinates, 20,23,[25][26][27][28][29][30][31] or phosphonates 20,21,23,27,[30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47]…”

“…The X-ray structure of Me 3 SnO 2 P(OH)Ph, for instance, shows infinite helicoidal chains. 40 The polymeric structure can also be limited to finite oligomers, as in the triphenyltin derivatives {Ph 3 Sn[O 2 P(OMe)Me]} 6 36 and {Ph 3 Sn[O 2 P(OPh) 2 ]} 6 , 24 which form only cyclohexamers. When more complex organic moieties are bound to tin, monomeric or dimeric compounds, yet with purely monodentate phosphorus oxo derivatives, can be observed as in the X-ray structure of 1-methyl-5-(O-tert-butylphosphonic acid)-1-aza-5-stannabicyclo[3.3.0 1,5 ]octane, 45 {5-tert-butyl-7-diethoxyphosphonyl-3-ethoxy-3-oxo-1,1-diphenyl-2,3,1-benzoxaphosphastannole, 41 or di-n-butyltin pyridine-2-phosphonate-6-carboxylate.…”

Synthesis of bis(tert-butyl)(2-thioxo-1,3-dithiole-4,5-dithiolato)stannane, But2Sn(dmit), and bis(tert-butyl)(2-oxo-1,3-dithiole-4,5-dithiolato)stannane, But2Sn(dmio): Crystal structures, at 120K, of polymeric But2Sn(dmit), and two polymorphs of But2Sn(dmio), a polymer and a cyclic tetramer

“…As in R 2 Sn(dmio) com- pounds, variations of substituents can lead to different degrees and types of aggregation. Thus Ph 3 SnO 2 PR 2 is hexameric [29,30], R 3 SnO 2 CR 0 are, in general, polymeric [31,32] and 1-BrPh 2 SnCH 2 -1,2,4-triazole is dimeric [26] in the solid state. The ring size found for 2m with 24 atoms is the largest so far reported.…”