Synthesis of some Bidentate Ligands containing two different group V donor atoms

Chiswell, B.; Verrall, K.

doi:10.1002/prac.19703120504

Cited by 15 publications

(2 citation statements)

References 18 publications

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“…o-Dimethylarsinoaniline (NASH 2 ) was prepared by a literature procedure. 3 LiBu t and MgBu 2 (1.7 and 1.0 M solutions in hexane and heptane, respectively) were purchased from Aldrich and used as received. High vacuum silicone grease was obtained from Dow Corning.…”

Section: Methodsmentioning

confidence: 99%

“…Since the synthesis of o-dimethylarsinoaniline (NASH 2 ) and its diphenyl analogue (o-diphenylarsinoaniline) in 1970, 3 complexes of these novel ligands have not been reported. This contrasts with the wealth of structural and spectroscopic data concerning complexes of o-dimethylarsino-N,N-dimethylaniline reported by Peloso et al during the 70's and 80's.…”

Section: Introductionmentioning

confidence: 99%

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Lithium and magnesium complexes of ortho-dimethylarsinoaniline and a novel insertion of dimethylsilanone into an Mg–N bond—molecular structures of [{Li(µ2:η1-NHC6H4AsMe2)(thf)2}2] and the insertion product [{Mg2(µ2:η1-NHC6H4AsMe2)2(µ3:η3-OSiMe2NC6H4AsMe2)(thf)}2]

2001

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Treatment of ortho-dimethylarsinoaniline (NASH 2 ) with 1.0 equivalents of LiBu t or 0.5 equivalents of MgBu 2 in tetrahydrofuran affords the complexes [{Li(NASH)(thf) 2 } 2 ] (1) and [Mg(NASH) 2 (thf) 1.5 ] (2) (NASH ¼ NHC 6 H 4 AsMe 2 -2). Both complexes have been characterised spectroscopically. The crystal structure determination of 1 reveals a centrosymmetric dimeric structure with an Li 2 N 2 central unit that does not exhibit arsino-lithium donor interactions. Compound 2 reacts with dimethylsilicone grease to yield the unexpected complex [{Mg 2 (m 2 :Z 1 -NHC 6 H 4 AsMe 2 ) 2 (m 3 :Z 3 -OSiMe 2 NC 6 H 4 AsMe 2 )(thf)} 2 ] (3), via the novel and unprecedented insertion of a dimethylsilanone fragment into an Mg-N bond. Compound 3 is tetranuclear with a 12-membered Mg 4 N 6 O 2 double stacked cube centre that has Mg atoms residing at alternate corners of each cube. The arsino functionalities of the modified Z 3 -bound ligands co-ordinate to Mg atoms on the vertices.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%