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Syntheses and structures of highly hindered N-functionalised alkyl–group 2 metal complexes [M{NC<sub>5</sub>H<sub>4</sub>C(SiMe<sub>3</sub>)<sub>2</sub>-2}<sub>2</sub>](M = Mg, Zn, Cd, or Hg)
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1986
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Materials ScienceInorganic ChemistryDative Metal–nitrogen InteractionsMean M–c DistancesEngineeringNatural SciencesCoordination ComplexMolecular BiologyMononuclear MetalMolecular ComplexMetal ComplexesChemistryN-functionalised Alkyl–group 2CrystallographyInorganic SynthesisMetal Chain CompoundInorganic Compound
The complexes [[graphic omitted](SiMe3)2-2}2][M = Mg (1), Zn (2), Cd (3), or Hg (4), accessible either by metallation of NC5H4{CH(SiMe3)2}-2 (RH)[for (1), using MgBunBus], or from LiR(thf)n(thf = tetrahydrofuran)[for (2)–(4), using MCl2], are mononuclear metal(II) alkyls in which the dative metal–nitrogen interactions progressively weaken and C–M–C angles become more open in the sequence (1)→(4)[<M–N>, <C–M–C>: 2.13 Å, 157°, (1); 2.30 Å, 164°, (2); 2.49 Å, 174°, (3); 2.78 Å, 180°, (4); corresponding mean M–C distances are 2.22; 2.07; 2.27; 2.16 Å].