Silyl stabilized azanes: Reactions of mono- and dilithium bis(trimethylsilyl)hydrazide with dichloro- and tetrachlorostannane

Kataria, Jyoti; Mayer, Péter; Vasisht, Sham Kumar; Venugopalan, Paloth

doi:10.1016/j.jorganchem.2009.03.004

Cited by 2 publications

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“…61 Reaction with SnCl 4 has been found to oxidise dilithiumbis(trimethylsilyl)hydrazide to lithium tris(trimethylsilyl) hydrazide. 62 'Conventional' (À)-sparteine adducts of lithium and sodium HMDS have been prepared and characterised, along with an unexpected and 'unconventional' hydroxyl-incorporated sodium sodiate, [(À)-sparteine.Na-(m-HMDS)Na. (À)-sparteine] + [Na 4 (m-HMDS) 4 (OH)] À (5), the complex anion of which is the first inverse crown ether anion.…”

Section: Group 15 Donor Ligandsmentioning

confidence: 99%

Alkaline and alkaline earth metals

Hill¹

2010

Annu. Rep. Prog. Chem., Sect. A: Inorg. Chem.

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This chapter provides a non-critical overview of research advances involving the elements of Groups 1 and 2 during the calendar year 2009. As was the case in previous years, coverage will concentrate upon topics centred around the synthesis, structures and applications of coordination compounds of these elements. This self-imposed restriction will necessarily result in the omission of numerous advances in other branches of chemistry and, for this, the author wishes to apologise in advance. HighlightsConcerns over energy supply and storage have resulted in enhanced interest in the application of s-block compounds, either as components of MOF structures or in the synthesis of amidoborane derivatives, as hydrogen storage media. [10][11][12]83,[124][125][126] The study of lower oxidation state alkaline earth [M(I)] species has also gathered momentum with reports of further examples of Mg-Mg bonded species and their reactivity, [129][130][131][132] as well as a unique Ca(I) complex. 141 The application of Group 2 complexes in molecular catalysis has also continued to attract intense international attention. 105,152,[175][176][177][178][179][180][181][182][183]

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Section: Group 15 Donor Ligandsmentioning

confidence: 99%

Alkaline and alkaline earth metals

Hill¹

2010

Annu. Rep. Prog. Chem., Sect. A: Inorg. Chem.

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“…Since the first synthesis and crystal structure determination of the cage‐like hetero tin‐nitrogen cubane (SnN t Bu) 4 , almost forty years ago a large number of derivatives with different substituents (mostly organic) on nitrogen have been published . Silyl‐amido derivatives [SnN(SiR 3 )] 4 have been known since the year 2000 and have been revealed in several reactions to be quite stable products , . Hetero‐cubanes of the type Sn 3 M(N t Bu) 4 with M = lithium or magnesium replacing one of the tin atoms in (SnN t Bu) 4 have been isolated and used for generating chalcogenides of magnesium, trapped in the cage structure Sn 3 (Mg E )(N t Bu) 4 ( E = Se, Te), or have been used to generate tin chalcogenides assembled by imino groups, [(Sn E ) 3 (N t Bu) 4 Li(THF)] – ( E = Se or Te), when the anionic lithium derivative was allowed to react.…”

Section: Introductionmentioning

confidence: 99%

The Imino Stannylene SnNH Incorporated in a Molecular Tin‐Nitrogen Cage and other Tin(II)‐Nitrogen Derivatives

Veith

Opsölder

Hüch

2018

Zeitschrift anorg allge chemie

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The iminostannylene HNSn was successfully incorporated in a molecular cage of composition (Me2RSi–NSn)3(HNSn) with group R either being a methyl (1) or vinyl (2) substituent. An X‐ray structure analysis reveals that 2 consists of a distorted Sn4N4 cube. The Sn–N(H) bond lengths [2.189(2) Å] are in the range for Sn4N4 hetero cubanes. When stored in a toluene solution the clusters 1 and 2 decompose slowly into the symmetric cubanes (Me2RSi–NSn)4 [R = Me (3), CHCH2 (4)] and an amorphous and insoluble powder of composition HNSn. The decomposition follows a first order rate law as established for 2 with a half life time t1/2 = 320 d at 20 °C. The compounds 1 and 2 can thus be regarded as a result of interaction between three entities {Me2RSi–NSn} and one entity {HNSn}. We also isolated the twistane‐like Me2Si(NtBu)2Sn2NtBu (5) in a crystalline form. The central structure of this molecule, which has almost C2v symmetry, has a trigonal bipyramid Sn2N3 unit with the nitrogen atoms occupying the equatorial plane. Each nitrogen atom has a tert‐butyl ligand and two of the N atoms are further connected by the dimethylsilyl group. There is one nitrogen atom in an almost planar environment (only bonding to tert‐butyl and two tin atoms) with a remarkable short Sn–N bond length of 2.048(5) Å. Both tin atoms in cage 5 can bond to Cr(CO)5 to form [Me2Si(NtBu)2Sn2NtBu][Cr(CO)5]2 (6) with an almost linear Cr–Sn···Sn–Cr arrangement and Sn–Cr bond lengths of 2.581(1) Å (X‐ray diffraction).

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Silyl stabilized azanes: Reactions of mono- and dilithium bis(trimethylsilyl)hydrazide with dichloro- and tetrachlorostannane

Cited by 2 publications

References 38 publications

Alkaline and alkaline earth metals

Alkaline and alkaline earth metals

The Imino Stannylene SnNH Incorporated in a Molecular Tin‐Nitrogen Cage and other Tin(II)‐Nitrogen Derivatives

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