New “bucky-ligands”. Potentially monoanionic terdentate diamino aryl pincer ligands anchored to C60

Meijer, Michel D.; Rump, Mathias; Gossage, Robert A.; Jastrzebski, Johann H.T.B.; Koten, Gerard van

doi:10.1016/s0040-4039(98)01423-3

Cited by 33 publications

(18 citation statements)

References 25 publications

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“…The organometallic derivatives of the ligand C 6 H 3 -2,6-(CH 2 NMe 2 ) 2 Ð have interesting structures 1 and very good catalytic properties (Ni, 2 Pd, 3 and Pt 4 ). These types of compound are also well known for their coordination ability, due to one or two nitrogen donor centres.…”

Section: Introductionmentioning

confidence: 99%

Structure and in vitro antifungal activity of [2,6‐bis(dimethylaminomethyl)phenyl]diphenyltin(IV) compounds

Růžička

Dostál

Jambor

et al. 2002

Applied Organom Chemis

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Section: Introductionmentioning

confidence: 99%

Structure and in vitro antifungal activity of [2,6‐bis(dimethylaminomethyl)phenyl]diphenyltin(IV) compounds

Růžička

Dostál

Jambor

et al. 2002

Applied Organom Chemis

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“…General remarks. HC(O)-1-C 6 H 3 (CH 2 NMe 2 ) 2 -3,5 (1a) [19], Br-1-HC(O)-4-C 6 H 2 (CH 2 NMe 2 ) 2 -2,6 (1b) [12], [Pd 2 (dba) 3 Á CHCl 3 ] (5a) [21], [Pt(tol-4) 2 (SEt 2 )] 2 (5b) [22] and {[Ti](l-r,p-C"CSiMe 3 ) 2 }AgO-ClO 3 (7) [13] were prepared following published procedures. All other chemicals were purchased from commercial suppliers and were used as received.…”

Section: Methodsmentioning

confidence: 99%

“…The 1 H NMR spectra of 2a and 2b show the resonance signals typical for NCN-pincer metal complexes [10,12,19] (8)). The presence of the Pt(II) ion in 6b and 8 is supported by the observation of 3 J PtH coupling constants of 38-40 Hz for the NMe 2 entities and 45-49 Hz for the CH 2 units (see Section 4).…”

Section: Synthesis and Spectroscopymentioning

confidence: 99%

Synthesis and reaction chemistry of 4-nitrile-substituted NCN-pincer palladium(II) and platinum(II) complexes (NCN=[NC-4-C6H2(CH2NMe2)2-2,6]−)

Köcher

Walfort

Mills

et al. 2008

Journal of Organometallic Chemistry

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a b s t r a c tNitrile-functionalized NCN-pincer complexes of type [MBr(N"C-4-C 6 H 2 (CH 2 NMe 2 ) 2 -2,6)] (6a, M = Pd; 6b, M = Pt) (NCN = [C 6 H 2 (CH 2 NMe 2 ) 2 -2,6] À ) are accessible by the reaction of Br-1-N"C-4-C 6 H 2 -(CH 2 NMe 2 ) 2 -2,6 (2b) with [Pd 2 (dba) 3 Á CHCl 3 ] (5a) (dba = dibenzylidene acetone) and [Pt(tol-4) 2 (SEt 2 )] 2 (5b) (tol = tolyl), respectively. Complex 6b could successfully be converted to the linear coordination polymer {[Pt(N"C-4-C 6 H 2 (CH 2 NMe 2 ) 2 -2,6)](ClO 4 )} n (8) upon its reaction with the organometallic heterobimetallic p-tweezer compound {[Ti](l-r,p-C"CSiMe 3 ) 2 }AgOClO 3 (7) ([Ti] = (g 5 -C 5 H 4 SiMe 3 ) 2 Ti). The structures of 6a (M = Pd) and 6b (M = Pt) in the solid state are reported. In both complexes the d 8 -configurated transition metal ions palladium(II) and platinum(II) possess a somewhat distorted square-planar coordination sphere. Coordination number 4 at the group-10 metal atoms M is reached by the coordination of two ortho-substituents Me 2 NCH 2 , the NCN ipso-carbon atom and the bromide ligand. The N"C group is para-positioned with respect to M.

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“…H(O)C-1-C 6 H 3 (CH 2 NMe 2 ) 2 -3,5 (1a) [23], H(O)C-4-C 6 H 2 -(CH 2 NMe 2 ) 2 -2,6-Br-1 (1b) [15], [Pd 2 (dba) 3 Á CHCl 3 ] (3) [24] and [Pt(4-tol) 2 (SEt 2 )] 2 (4) [25] were prepared following published procedures. All other chemicals were purchased from commercial sources and were used without any further purification.…”

Section: General Remarksmentioning

confidence: 99%

Oxime-substituted NCN-pincer palladium and platinum halide polymers through non-covalent hydrogen bonding (NCN=[C6H2(CH2NMe2)2-2,6]−)

Köcher¹,

Lutz²,

Spek³

et al. 2008

Journal of Organometallic Chemistry

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a b s t r a c tThe oxime-substituted NCN-pincer molecules HON@CH-1-C 6 H 3 (CH 2 NMe 2 ) 2 -3,5 (2a) and HON@CH-4-C 6 H 2 (CH 2 NMe 2 ) 2 -2,6-Br-1 (2b) were accessible by treatment of the benzaldehydes H(O)C-4-C 6 H 3 (CH 2 NMe 2 ) 2 -3,5 (1a) and H(O)C-4-C 6 H 2 (CH 2 NMe 2 ) 2 -2,6-Br-1 (1b) with an excess of hydroxylamine. In the solid state both compounds are forming polymers with intermolecular O-HÁ Á ÁN connectivities between the Me 2 NCH 2 substituents and the oxime entity of further molecules of 2a and 2b, respectively. Characteristic for 2a and 2b is a helically arrangement involving a crystallographic 2 1 screw axis of the HON@CH-1-C 6 H 3 (CH 2 NMe 2 ) 2 -3,5 and HON@CH-4-C 6 H 2 (CH 2 NMe 2 ) 2 -2,6-Br-1 building blocks. The reaction of 2b with equimolar amounts of [Pd 2 (dba) 3 Á CHCl 3 ] (3) (dba = dibenzylidene acetone) or [Pt(tol) 2 (SEt 2 )] 2 (4) (tol = 4-tolyl) gave by an oxidative addition of the C-Br unit to M coordination polymers with a [(HON@CH-4-C 6 H 2 (CH 2 NMe 2 ) 2 -2,6)MBr] repeating unit (5: M = Pd, 6: M = Pt). Complexes 5 and 6 are in the solid state linear hydrogen-bridged polymers with O-HÁ Á ÁBr contacts between the oxime entities and the metal-bonded bromide.

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New “bucky-ligands”. Potentially monoanionic terdentate diamino aryl pincer ligands anchored to C60

Cited by 33 publications

References 25 publications

Structure and in vitro antifungal activity of [2,6‐bis(dimethylaminomethyl)phenyl]diphenyltin(IV) compounds

Structure and in vitro antifungal activity of [2,6‐bis(dimethylaminomethyl)phenyl]diphenyltin(IV) compounds

Synthesis and reaction chemistry of 4-nitrile-substituted NCN-pincer palladium(II) and platinum(II) complexes (NCN=[NC-4-C6H2(CH2NMe2)2-2,6]−)

Oxime-substituted NCN-pincer palladium and platinum halide polymers through non-covalent hydrogen bonding (NCN=[C6H2(CH2NMe2)2-2,6]−)

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