Variable-temperature tin-119m Moessbauer study of tin(II) and tin(IV) amines

Molloy, Kieran C.; Bigwood, M. P.; Herber, Rolfe H.; Zuckerman, J. J.

doi:10.1021/ic00140a022

Cited by 24 publications

(13 citation statements)

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“…This distannene exhibits a signal in the 119 Sn Mössbauer spectrum with an isomer shift of 2.16 mm s –1 and a quadrupole splitting of 2.31 mm s –1 . Effects due to the substituent at the tin and the C–Sn–C angle aside, monomeric stannylenes with coordination number two at the tin atom show signals at higher isomer shifts and with larger quadrupole splitting in comparison to distannenes . The ferrocenyl derivatives 1 and 2 exhibit in the case of the two-coordinate bis(stannylene) compound 1 the expected higher isomer shift in comparison to the three-coordinate tin atoms in the cyclic distannene 2 .…”

Section: Resultsmentioning

confidence: 89%

“…45 Effects due to the substituent at the tin and the C−Sn−C angle aside, monomeric stannylenes with coordination number two at the tin atom show signals at higher isomer shifts and with larger quadrupole splitting in comparison to distannenes. 46 The ferrocenyl derivatives 1 and 2 exhibit in the case of the two-coordinate bis(stannylene) compound 1 the expected higher isomer shift in comparison to the three-coordinate tin atoms in the cyclic distannene 2. This tendency is corroborated by the much higher quadrupole splitting in 1.…”

Section: ■ Introductionmentioning

confidence: 97%

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Cyclic Distannene or Bis(stannylene) with a Ferrocenyl Backbone: Synthesis, Structure, and Coordination Chemistry

et al. 2018

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1,1'-Dilithioferrocene was reacted with 2 equiv of isopropyl (Ar*) or methyl (Ar') substituted terphenyl tin(II) chloride. Reaction product 1, carrying the bulkier terphenyl substituent Ar*, displays a bis(stannylene) structure in the solid state without formation of a tin-tin bond. Temperature-dependent solution Sn NMR spectroscopy, however, revealed a dynamic interplay between bis(stannylene) (100 °C) and cyclic distannene (-80 °C). In contrast to 1, the less bulky Ar' substituent results in a cyclic distannene 2. On the basis of temperature-dependentSn NMR spectroscopy the Sn-Sn bond of compound 2 was preserved up to 100 °C. Both compounds were further characterized by solid-state Sn NMR spectroscopy as well asSn and Fe Mössbauer spectroscopy. 1 reacted as a chelating ligand with nickel and palladium complexes [Ni(cod)] and [Pd(nbe)] (nbe = norbornene). In the resulting coordination compounds the nonstabilized stannylene acts as a donor as well as an acceptor ligand and shows a dynamic switch from donor to acceptor behavior in the monopalladium complex.

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Section: Resultsmentioning

confidence: 89%

Section: ■ Introductionmentioning

confidence: 97%

Cyclic Distannene or Bis(stannylene) with a Ferrocenyl Backbone: Synthesis, Structure, and Coordination Chemistry

et al. 2018

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“…[191][192][193] Neat CuCN emits at the edge of the visible spectral range with λ max = 392 nm, but the solvent adducts luminesce with different colors throughout the visible spectral range with λ max depending on the exact nature of the amine (L) (Figure 54). 191 197,198 4. Zinc(II) tetraphenylporphyrin (110) dissolved in silicone rubber can be used for detection of ammonia vapor at concentrations as low as 0.7 ppm.…”

Section: Compounds With Metals Other Than Platinum or Goldmentioning

confidence: 99%

Vapochromism in Organometallic and Coordination Complexes: Chemical Sensors for Volatile Organic Compounds

2013

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“…2 The amide derivatives most relevant to 1-3 concern {Sn(NMe 2 ) 2 } 2 and , both of which have isomer shift values of 2.72 mm s -1 , and quadrupole splittings of 2.03 and 2.07 mm s -1 , respectively. 31, 32 The values obtained for the tin sites bound to three nitrogens in 1-3 (Table 3) resemble these shifts with only the chloride-bound tin in 2 displaying a substantially different value.…”

Section: Mössbauer Spectroscopymentioning

confidence: 76%

Synthesis and characterization of the unstable primary amido tin(ii) dimer Sn2{N(H)Dipp}4 (Dipp = C6H3-2,6-Pri2) and the first sesqui-amido hemi-chloride derivative Sn2{N(H)Dipp}3Cl: facile conversion of a primary amide to the imide (SnNDipp)4

et al. 2008

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The primary tin(ii) amido derivatives Sn(2){N(H)Dipp}(4) () and Sn(2){N(H)Dipp}(3)Cl () (Dipp = C(6)H(3)-2,6-Pr(i)(2)) have been prepared and characterized. Compound was obtained by the transamination of Sn{N(SiMe(3))(2)}(2) with H(2)NDipp in a 1 : 2 ratio or by the reaction of two equivalents of LiN(H)Dipp with SnCl(2). The attempted preparation of Sn(Cl){N(H)Dipp} by reaction of LiN(H)Dipp with SnCl(2) in a 1 : 1 ratio led to the isolation of the unique species Sn(2){N(H)Dipp}(3)Cl, which is the first example of a sesqui-amido derivative of a group 14 element. Both and were characterized by (1)H and (119)Sn NMR spectroscopy, X-ray crystallography and Mössbauer spectroscopy. The structures of and feature two tin centers bridged by -N(H)Dipp ligands with the terminal positions being occupied by two N(H)Dipp () or -N(H)Dipp and -Cl () groups. The compound was found to be unstable under ambient conditions and spontaneously converts to the imide tetramer (SnNDipp)(4) in solution over several days at room temperature, representing a new synthetic route to group 14 element imides.

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Variable-temperature tin-119m Moessbauer study of tin(II) and tin(IV) amines

Cited by 24 publications

References 1 publication

Cyclic Distannene or Bis(stannylene) with a Ferrocenyl Backbone: Synthesis, Structure, and Coordination Chemistry

Cyclic Distannene or Bis(stannylene) with a Ferrocenyl Backbone: Synthesis, Structure, and Coordination Chemistry

Vapochromism in Organometallic and Coordination Complexes: Chemical Sensors for Volatile Organic Compounds

Synthesis and characterization of the unstable primary amido tin(ii) dimer Sn2{N(H)Dipp}4 (Dipp = C6H3-2,6-Pri2) and the first sesqui-amido hemi-chloride derivative Sn2{N(H)Dipp}3Cl: facile conversion of a primary amide to the imide (SnNDipp)4

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