The structural behaviour of 2,2-functionally disubstituted triorganotin chlorides

Richter, Frank; Dargatz, M.; Hartung, H.; Schollmeyer, Dieter; Weichmann, H.

doi:10.1016/0022-328x(95)06047-z

Cited by 7 publications

(21 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The use of bifunctional nonbridging phosphorus oxo derivatives (e.g., (EtO) 2 P(O)CH(Me)P(O)(OR) 2 ) 32 can lead to structures based on chains, 32,44 dimers, 42,43,47 or even monomers. 31,33,35,46 The formation of phosphoryl adducts have also been reported for tetraorganotin derivatives bearing a rigid O,C,O-pincer group of the type (2,6-bis(diethoxyphosphonyl)-4-tert-butyl)phenyl. 33 For such cases, the Sn-O contacts generated are weak (2.8-3.0 Å), and the tin coordination is better described as "4+2".…”

Section: Introductionmentioning

confidence: 84%

“…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]…”

Section: Introductionmentioning

confidence: 99%

“…21,25 A variety of organotin compounds with nonbridging phosphorus oxo derivatives, mainly phosphonate diesters and phosphinate monoesters, have also been reported. [30][31][32][33]35,[42][43][44][46][47][48] ) 1, 2, 3 and X ) Cl or Br), where the coordination of tin is expanded to 5 or 6 by the oxygen atom of the Pd O groups. The use of bifunctional nonbridging phosphorus oxo derivatives (e.g., (EtO) 2 P(O)CH(Me)P(O)(OR) 2 ) 32 can lead to structures based on chains, 32,44 dimers, 42,43,47 or even monomers.…”

Section: Introductionmentioning

confidence: 99%

“…The present work offered us the opportunity to implement and assess the use of 31 P-detected 2D HMQC NMR spectroscopy 49 applied to the 31 P-119 Sn pair, to identify complex 2 J( 31 P-O-119/117 Sn) coupling patterns and getting, in this way, insight into possible structures. Several 31 P-m Y correlation experiments have been performed with nonmetals, predominantly 13 C and 15 N. 50 31 P-detected HMQC 31 P-m Y pulse sequences have also been used to investigate the structure of silver, platinum, and mercury complexes, as well as of organotungsten, -iron, and -rhodium compounds. 50 However, except for the case of 31 P-6 Li, correlations between 31 P and main group metal nuclei have not been reported.…”

Section: Introductionmentioning

confidence: 99%

“…Several 31 P-m Y correlation experiments have been performed with nonmetals, predominantly 13 C and 15 N. 50 31 P-detected HMQC 31 P-m Y pulse sequences have also been used to investigate the structure of silver, platinum, and mercury complexes, as well as of organotungsten, -iron, and -rhodium compounds. 50 However, except for the case of 31 P-6 Li, correlations between 31 P and main group metal nuclei have not been reported.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Di-n-butyltin Methyl- and Phenylphosphonates

Ribot¹,

Sánchez²,

Biesemans³

et al. 2001

Organometallics

View full text Add to dashboard Cite

The structure of [Bu 2 Sn(HO 3 PMe) 2 ] 2 (1), as determined by single-crystal X-ray diffraction, is based on a dimer containing bridging and terminal hydrogenophosphonate ligands. The tin atoms are formally five-coordinate, but exhibit also two additional remote contacts, d(Sn-O) ≈ 3.14 Å, which results in a "5+2" type coordination. This crystalline compound and the three other amorphous compounds, Bu 2 Sn(O 3 PMe) (2), Bu 2 Sn(HO 3 PPh) 2 (3), and Bu 2 -Sn(O 3 PPh) (4), have been characterized by solid state 31 P and 119 Sn MAS NMR. Compound 1 exhibits a very well resolved 31 P MAS NMR spectrum in which three different 2 J-( 31 P-119/117 Sn) iso scalar couplings can be measured. 31 P and 119 Sn NMR, 31 P-19 Sn HMQC spectroscopy, and various other 2D NMR techniques at variable temperatures were used to unravel the basic structural unit of compounds 2 and 4 in solution, which is proposed to be based on a trigonal bipyramid of the type R 2 SnO 3 with two apical and one equatorial oxygen atom. Compound 1, in solution, displays a similar local geometry at tin and the same dimeric unit as in the crystalline state. In contrast with 2 and 4, however, compounds 1 and 3 display an extremely high degree of stereochemical fluxionality based on fast exchange of the bridging and terminal hydrogenophosphonate ligands.

show abstract

Section: Introductionmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Di-n-butyltin Methyl- and Phenylphosphonates

Ribot¹,

Sánchez²,

Biesemans³

et al. 2001

Organometallics

View full text Add to dashboard Cite

show abstract

Intramolecular Donor-Assisted Cyclization of Organotin Compounds

Mehring

Low

Schürmann

et al. 1999

Eur. J. Inorg. Chem.

View full text Add to dashboard Cite

New intramolecularly coordinated organotin compounds containing the monoanionic O,C,O‐coordinating ligand {4‐tert‐Bu‐2,6‐[P(O)(OEt)2]2C6H2}− have been synthesized by substitution reactions starting from organotin halides. In view of the enhanced reactivity of the intramolecularly coordinated compounds {4‐tert‐Bu‐2,6‐[P(O)(OEt)2]2C6H2}SnR2R′ (2, R = Ph, R′ = CH2SiMe3; 3, R = R′ = Ph; 6, R = R′ = Cl), cationic tin species are suggested to occur as intermediates in the formation of the heterocyclic compounds [1(Sn),3(P)‐Ph2SnOP(O)(OEt)‐5‐tert‐Bu‐7‐P(O)(OEt)2]C6H2 (8), [1(Sn), 3(P)‐Ph(Me3SiCH2)SnOP(O)(OEt)‐5‐tert‐Bu‐7‐P(O)(OEt)2]C6H2 (15), and {[1(Sn),3(P)‐Cl2SnOP(O)(OEt)‐5‐tert‐Bu‐7‐P(O)(OEt)]C6H2}2 (16). The latter compounds are formed by intramolecular cyclizations of pentacoordinate cationic tin species under elimination of ethyl halide. Furthermore, the synthesis of [1(Sn),3(P)‐Ph2SnOP(O)(OH)‐5‐tert‐Bu‐7‐P(O)(OH)2]C6H2 (13) is described. Reaction of 8 with an excess of Me3SiBr leads to the unexpected formation of {2‐[P(O)(OEt)(OSiMe3)]‐4‐tert‐Bu‐6‐[P(O)(OEt)2]C6H2}SnPhBr2 (9) as a result of an O–Sn bond cleavage initiated by Me3SiBr and subsequent reaction of the intermediate with further Me3SiBr under Sn–C bond cleavage. The high donor capacity and the rigidity of the new ligand {4‐tert‐Bu‐2,6‐[P(O)(OEt)2]2C6H2}− are demonstrated by X‐ray diffraction analyses of the tetraorganotin compound 2 and the monoorganotin trichloride 6. Furthermore, the molecular structures of the 2,3,1‐oxaphosphastannoles 8 and 16 are discussed.

show abstract

Hypervalent Compounds of Organic Germanium, Tin and Lead Derivatives

Baukov

Tandura

2009

Patai's Chemistry of Functional Groups

View full text Add to dashboard Cite

Introduction and Outline Self‐Associates Pentacoordinate Anionic Compounds Pentacoordinate Intermolecular Neutral Compounds Pentacoordinate Intramolecular Neutral Germanium Compounds Pentacoordinate Intramolecular Neutral Tin and Lead Compounds Pentacoordinate Cationic Compounds Hexacoordinate Anionic Compounds Hexacoordinate Neutral Compounds Hexacoordinate Cationic Tin Compounds Acknowledgments

show abstract

The structural behaviour of 2,2-functionally disubstituted triorganotin chlorides

Cited by 7 publications

References 16 publications

Di-n-butyltin Methyl- and Phenylphosphonates

Di-n-butyltin Methyl- and Phenylphosphonates

Intramolecular Donor-Assisted Cyclization of Organotin Compounds

Hypervalent Compounds of Organic Germanium, Tin and Lead Derivatives

Contact Info

Product

Resources

About