Synthesis of complexes of dimethyltin(IV) with mono- and di-deprotonated pyridoxine (PN) in media with various anions. Crystal structures of [SnMe2(PN − H)]NO3·2H2O, [SnMe2(H2O)(PN − H)]Cl·H2O and [SnMe2(H2O)(PN − 2H)]·0.5H2O

Casas, José S.; Castellano, Eduardo E.; Condori, Félix; Couce, Marı́a D.; Sánchez, Agustı́n; Sordo, José; Varela, José M.; Zuckerman-Schpector, J.

doi:10.1039/a703167j

Cited by 25 publications

(31 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3 ppm]. These results, the Xray data and the fact that protonation of O(2) in PN to give PN·H ϩ shifts the C(3) signal slightly downfield (from δ ϭ 151.4 to 153.4 ppm [3] ) suggest that N-methylation of PN increases the order of the C(3)ϪO(2) bond, which should affect the donor ability of O(2). The 13 C NMR spectra of the ligand after deprotonation and coordination to the organometallic moieties are very similar, indicating that, as found in the X-ray study of 1Ϫ3, they all have the same coordination mode.…”

Section: Satisfactorymentioning

confidence: 62%

“…[3] In particular, the Sn 2 O 2 rings are practically identical. The most noteworthy differences are the shorter SnϪC bonds of 2·2H 2 O and its narrower CϪSnϪC angles [145.9(3)°versus 152.77(13)°].…”

Section: Description Of the Structuresmentioning

confidence: 97%

“…[12] The ring is planar, and makes an angle of 46. Comparison of this structure with those [3] The essential structural features of the dimeric unit are, as in 1, a central Sn 2 O 2 ring and the two methylpyridoxinato ligands linked to this ring. However, the following differences deserve comment.…”

Section: Description Of the Structuresmentioning

confidence: 98%

“…Only the data for the diethyltin derivative can be compared with those of the corresponding PN complex, [3] …”

Section: Mössbauer Spectramentioning

confidence: 99%

“…[3,4] These reactions led to complexes containing mono-or di-deprotonated pyridoxine ligands ([PNϪH] and [PNϪ2H], respectively) in dimeric [SnR 2 (PNϪH)] 2 2ϩ or [SnR 2 (PNϪ2H)] 2 units. In these species (I, II) the tin centre was usually pentacoordinated to the two R groups, the deprotonated phenolic oxygen atom of one PN molecule and the deprotonated 4-(hydroxymethyl) oxygen atoms of this and another PN molecule, the latter oxygen atoms bridging the tin atoms of each dimer.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Structural Characterization of N‐Methylpyridoxine (MePN; PN = Vitamin B₆) and Its Diorganotin Complexes [SnR₂(MePN‐H)]I (R = Me, Et, Bu and Ph)

et al. 2003

Self Cite

View full text Add to dashboard Cite

For comparison with the corresponding pyridoxine complexes we have prepared dimethyl‐, diethyl‐, dibutyl‐ and diphenyltin(IV) complexes of N‐methylpyridoxine (MePN). The compounds [SnMe2(MePN−H)]I (1), [SnEt2(MePN−H)]I (2), [SnBu2(MePN−H)]I (3) and [SnPh2(MePN−H)]I·H2O (4) were isolated and characterized by IR, Raman, Mössbauer, 1H, 13C and 119Sn NMR spectroscopy, and by EI and FAB mass spectrometry. The crystal structures of [HMePN]I and of compounds 1, 2·2H2O and 3 were determined by X‐ray diffractometry. Their lattices contain dimeric [SnR2(MePN−H)]22+ units (R = Me, Et, Bu) in which two bridging‐chelating methylpyridoxinato anions link pentacoordinate Sn atoms with coordination polyhedra closer to square pyramids than to trigonal bipyramids. NMR results show that the dimeric cations persist in (CD3)2SO. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)

show abstract

Section: Satisfactorymentioning

confidence: 62%

Section: Description Of the Structuresmentioning

confidence: 97%

Section: Description Of the Structuresmentioning

confidence: 98%

“…Only the data for the diethyltin derivative can be compared with those of the corresponding PN complex, [3] …”

Section: Mössbauer Spectramentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Structural Characterization of N‐Methylpyridoxine (MePN; PN = Vitamin B₆) and Its Diorganotin Complexes [SnR₂(MePN‐H)]I (R = Me, Et, Bu and Ph)

et al. 2003

Self Cite

View full text Add to dashboard Cite

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

Synthesis and characterization of di‐n‐butyltin(IV) complexes with 4′/2′‐nitrobiphenyl‐2‐carboxylic acids: X‐ray crystal structures of [{(n‐C₄H₉)₂Sn(OCOC₁₂H₈NO₂−4′)}₂O]₂ and (n‐C₄H₉)₂Sn{OCOC₁₂H₈NO₂−4′}₂

Kapoor

Gupta

Kapoor

et al. 2003

Applied Organom Chemis

View full text Add to dashboard Cite

. These compounds were characterized by elemental analysis, IR and NMR ( 1 H, 13 C and 119 Sn) spectroscopy. The IR spectra of these compounds indicate the presence of anisobidentate carboxylate groups and non-linear C-Sn-C bonds. From the chemical shifts δ ( 119 Sn) and the coupling constants 1 J( 13 C, 119 Sn), the coordination number of the tin atom and the geometry of its coordination sphere have been suggested. [{(n-C 4 H 9 ) 2 Sn(OCOC 12 H 8 NO 2 -4 )} 2 O] 2 (1) exhibits a dimeric structure containing distannoxane units with two types of tin atom with essentially identical geometry. To a first approximation, the tin atoms appear to be pentacoordinated with distorted trigonal bipyramidal geometry. However, each type of tin atom is further subjected to a sixth weaker interaction and may be described as having a capped trigonal bipyramidal structure. The diffraction study of the complex (n-C 4 H 9 ) 2 Sn(OCOC 12 H 8 NO 2 -4 ) 2 (3) shows a six-coordinate tin in a distorted octahedral frame containing bidentate asymmetric chelating carboxylate groups, with the n-Bu groups trans to each other. The n-Bu-Sn-n-Bu angle is 152.8 • and the Sn-O distances are 2.108(4) and 2.493(5)Å. The oxygen atom of the nitro group of the ligand does not participate in bonding to the tin atom in 1 and 3. Crystals of 1 are triclinic with space group P1 and of that of 3 have orthorhombic space group Pnna.

show abstract

Synthesis of complexes of dimethyltin(IV) with mono- and di-deprotonated pyridoxine (PN) in media with various anions. Crystal structures of [SnMe2(PN − H)]NO3·2H2O, [SnMe2(H2O)(PN − H)]Cl·H2O and [SnMe2(H2O)(PN − 2H)]·0.5H2O

Cited by 25 publications

References 33 publications

Structural Characterization of N‐Methylpyridoxine (MePN; PN = Vitamin B₆) and Its Diorganotin Complexes [SnR₂(MePN‐H)]I (R = Me, Et, Bu and Ph)

Structural Characterization of N‐Methylpyridoxine (MePN; PN = Vitamin B₆) and Its Diorganotin Complexes [SnR₂(MePN‐H)]I (R = Me, Et, Bu and Ph)

Hypervalent Compounds of Organic Germanium, Tin and Lead Derivatives

Synthesis and characterization of di‐n‐butyltin(IV) complexes with 4′/2′‐nitrobiphenyl‐2‐carboxylic acids: X‐ray crystal structures of [{(n‐C₄H₉)₂Sn(OCOC₁₂H₈NO₂−4′)}₂O]₂ and (n‐C₄H₉)₂Sn{OCOC₁₂H₈NO₂−4′}₂

Contact Info

Product

Resources

About

Synthesis of complexes of dimethyltin(IV) with mono- and di-deprotonated pyridoxine (PN) in media with various anions. Crystal structures of [SnMe2(PN − H)]NO3·2H2O, [SnMe2(H2O)(PN − H)]Cl·H2O and [SnMe2(H2O)(PN − 2H)]·0.5H2O

Cited by 25 publications

References 33 publications

Structural Characterization of N‐Methylpyridoxine (MePN; PN = Vitamin B6) and Its Diorganotin Complexes [SnR2(MePN‐H)]I (R = Me, Et, Bu and Ph)

Structural Characterization of N‐Methylpyridoxine (MePN; PN = Vitamin B6) and Its Diorganotin Complexes [SnR2(MePN‐H)]I (R = Me, Et, Bu and Ph)

Hypervalent Compounds of Organic Germanium, Tin and Lead Derivatives

Synthesis and characterization of di‐n‐butyltin(IV) complexes with 4′/2′‐nitrobiphenyl‐2‐carboxylic acids: X‐ray crystal structures of [{(n‐C4H9)2Sn(OCOC12H8NO2−4′)}2O]2 and (n‐C4H9)2Sn{OCOC12H8NO2−4′}2

Contact Info

Product

Resources

About

Structural Characterization of N‐Methylpyridoxine (MePN; PN = Vitamin B₆) and Its Diorganotin Complexes [SnR₂(MePN‐H)]I (R = Me, Et, Bu and Ph)

Structural Characterization of N‐Methylpyridoxine (MePN; PN = Vitamin B₆) and Its Diorganotin Complexes [SnR₂(MePN‐H)]I (R = Me, Et, Bu and Ph)

Synthesis and characterization of di‐n‐butyltin(IV) complexes with 4′/2′‐nitrobiphenyl‐2‐carboxylic acids: X‐ray crystal structures of [{(n‐C₄H₉)₂Sn(OCOC₁₂H₈NO₂−4′)}₂O]₂ and (n‐C₄H₉)₂Sn{OCOC₁₂H₈NO₂−4′}₂