Stannatranes

Kostyanovskii, R. G.; Prokof'ev, A. K.; Goldanskii, V. I.; Khrapov, V. V.; Rochev, V.Ya.

doi:10.1007/bf00908425

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…The resonance signals of the methylene -CH 2 D-and also the methyl CH 3 N protons of stannocanes are shifted downfield to a greater or lesser degree in comparison with the corresponding signals of the model compounds (the free ligands or, for the dioxaazastannocanes, N-methylmorpholine). Such descreening of the protons is similar to that described for silocanes and germocanes and is due to the participation of the unshared electron pair of the heteroatom D in intramolecular coordination of the tin center [12,13,25,38].…”

Section: Nmr Spectroscopymentioning

confidence: 59%

“…The accessibility of the spiro(bisocane) 6b by heating a mixture of N-methyldiethanolamine and tetra(dimethylamino)stannane was demonstrated in [25]. The yield was close to quantitative.…”

Section: Other Methodsmentioning

confidence: 92%

“…of di-or triethanolamine in the reaction made it possible to isolate the spirocyclic bisocanes 6 [24]. In [25] transetherification to the spiro(bisocane) 6b (R 1 = Me) was achieved by using tetramethoxystannane in the form of a 2:1 adduct with dimethylamine. During treatment of dialkyldimethoxystannane with an equimolar amount of N-methyliminodiacetic acid 93-96% yields of the stannocanes 5 were obtained [19].…”

Section: Reaction Of Diethanolamines Iminoacetic Acids and Their Ammentioning

confidence: 99%

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Metallocanes of group 14 elements 2. Derivatives of tin (Review)

Selina

Karlov

Lermontova

et al. 2007

Chem Heterocycl Compd

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Section: Nmr Spectroscopymentioning

confidence: 59%

“…The accessibility of the spiro(bisocane) 6b by heating a mixture of N-methyldiethanolamine and tetra(dimethylamino)stannane was demonstrated in [25]. The yield was close to quantitative.…”

Section: Other Methodsmentioning

confidence: 92%

Section: Reaction Of Diethanolamines Iminoacetic Acids and Their Ammentioning

confidence: 99%

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Metallocanes of group 14 elements 2. Derivatives of tin (Review)

Selina

Karlov

Lermontova

et al. 2007

Chem Heterocycl Compd

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Dative Bonding in Quasimetallatranes Containing Group 15 Donors (Y = N, P, and As) and Group 14 Acceptors (M = Si, Ge, Sn, and Pb)

Bakry,

Fanelli,

Zeldin

et al. 2024

Inorg. Chem.

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Metallatranes and their analogous fused ring [3.3.0] bicyclic compounds, quasimetallatranes, have emerged as fascinating molecular systems with intriguing structural, bonding, and conformational properties. We present a comprehensive investigation aimed at unraveling the nature of dative bonding and exploring the conformational flexibility of these compounds. We extensively characterize the dative bond between the metal center and the electron pair donor, using a range of modeling techniques. Our analyses involve structural optimizations, molecular orbital examinations, and covalency ratio calculations, which provide a thorough understanding of the bonding interactions responsible for the stability of these systems. The results confirmed the presence of dative bonds, supported by the close proximity between the metal and the electron-donating group, and the observation of overlapping electron density. Our studies reveal a correlation between the size of the electron-donor and the coordinating metal atom, and the strength of the dative interaction, as indicated by the bond length and the Wiberg bond indices. This bond strength, in turn, influences the conformational preferences adopted by these compounds. This investigation sheds light on the fundamental aspects of the fused ring [3.3.0] bicyclic quasimetallatrane compounds and offers valuable insights into their unique properties.

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