Labile coordination of bis(diphenylphosphinomethyl) phenylphosphine in di- and trinuclear palladium and platinum complexes containing ortho-substituted aromatic isocyanide

Yamamoto, Yasuhiro; Tanase, Tomoaki; Ukaji, Hirokazu; Hasegawa, Masaru; Igoshi, Toshiaki; Yoshimura, Kazuhiro

doi:10.1016/0022-328x(95)05635-3

Cited by 31 publications

(23 citation statements)

References 16 publications

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“…The two pyrazoles are not chemically equivalent in the 1 H NMR spectrum (Figure ), suggesting that only one of them is coordinated to palladium. The phosphine is in a solution state equilibrium between a free and palladium bound phosphine as observed by two peaks at –14.9 and 9.4 ppm, respectively, in the 31 P NMR spectrum (Figure S15) . However, no reaction occurs upon the addition of benzonitrile or ferrocenyldiphenylphosphine to (fc P,B )PdMe, suggesting that weaker nucleophiles cannot displace the supporting ligand.…”

Section: Resultsmentioning

confidence: 97%

Switchable Polymerization of Norbornene Derivatives by a Ferrocene‐Palladium(II) Heteroscorpionate Complex

Абубекеров¹,

Shepard²,

Diaconescu

2016

Eur J Inorg Chem

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Section: Resultsmentioning

confidence: 97%

Switchable Polymerization of Norbornene Derivatives by a Ferrocene‐Palladium(II) Heteroscorpionate Complex

Абубекеров¹,

Shepard²,

Diaconescu

2016

Eur J Inorg Chem

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“…These characteristics are advantageous for constructing thermoelectric devices, indicating that phosphine dopants therefore have potential for constructing a wide range of thermoelectric SWNT-based materials. Synthetic rigid oligo-phophine ligands such as bis[(diphenylphosphinomethyl)phenylphosphino]methane (dpmppm) also served as efficient n-type dopants 16 17 .…”

Section: Resultsmentioning

confidence: 99%

“…All the dopants except for BV, dpmp 16 and dpmppm 17 were used as received. As-purchased benzyl viologen chloride was neutralized with NaBH 4 in water/toluene biphasic solution before use 9 .…”

Section: Methodsmentioning

confidence: 99%

Systematic Conversion of Single Walled Carbon Nanotubes into n-type Thermoelectric Materials by Molecular Dopants

Nonoguchi

Ohashi

Kanazawa

et al. 2013

Sci Rep

Self Cite

345

281

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Thermoelectrics is a challenging issue for modern and future energy conversion and recovery technology. Carbon nanotubes are promising active thermoelectic materials owing to their narrow bandgap energy and high charge carrier mobility, and they can be integrated into flexible thermoelectrics that can recover any waste heat. We here report air-stable n-type single walled carbon nanotubes with a variety of weak electron donors in the range of HOMO level between ca. −4.4 eV and ca. −5.6 eV, in which partial uphill electron injection from the dopant to the conduction band of single walled carbon nanotubes is dominant. We display flexible films of the doped single walled carbon nanotubes possessing significantly large thermoelectric effect, which is applicable to flexible ambient thermoelectric modules.

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“…The Pt-P(2) bond distance is found to be shorter than the Pt-P terminal due to the double chelate effect. The P-Pt-Cl angles, 97.50 (7), 176.52 (7), 92.94 (7)Њ and the P-Pt-P, 84.69 (7), 169.54 (6) and 84.92(7)Њ, show the distorted squareplanar environment at platinum. The distortion is higher for Ni complexes (X = Cl, I).…”

Section: Crystallographymentioning

confidence: 97%

Gold(I)-induced chelate ring-opening of palladium(II) and platinum(II) triphos complexes

Sevillano¹,

Habtemariam²,

Parsons³

et al. 1999

J. Chem. Soc., Dalton Trans.

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The complexes [M(triphos)Cl]Cl [triphos = PhP(CH 2 CH 2 PPh 2 ) 2 ; M = Pd (1), M = Pt (2)] undergo ring-opening reactions with Au() to give [MAu(triphosIn these mixed metal complexes, triphos acts as a bidentate ligand for M and the third phosphorus atom is coordinated to Au() with a linear geometry. Complexes 1-4 were characterised by microanalysis, FAB mass spectrometry, IR, NMR ( 31 P and 195 Pt) spectroscopies and conductivity measurements. Complexes 2-4 were also characterised by X-ray crystallography. [Pt(triphos)Cl]Cl, 2, is monoclinic, space group P 2 1 /n, with square-planar geometry. The Pt-P central bond distance (2.207 Å) is shorter than the other two Pt-P distances (2.312 and 2.315 Å). [PdAu(triphos)Cl 3 ], 3, is also monoclinic (space group P 2 1 /n), with square-planar Pd() and linear Au() (P-Au-Cl 177.73Њ), and has a similar structure to complex 4, [PtAu(triphos)Cl 3 ] (monoclinic, space group I 2/a). The thiolate S of the tripeptide glutathione (GSH) and N-acetyl--cysteine binds to [Pt(triphos)] 2ϩ giving adducts with high aqueous solubility. In the presence of Au(), 5Ј-GMP displaced glutathione from [Pt(triphos)(GS)] ϩ to form two adducts. Both GSH and N-acetyl--cysteine readily extracted Au() from complex 4, [PtAu(triphos)Cl 3 ], to give complex 2, [Pt(triphos)Cl]Cl, and the Au() thiolate. Since chloride and thiolates would be strong competitors to DNA binding, proteins could be possible target sites for these complexes.

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Labile coordination of bis(diphenylphosphinomethyl) phenylphosphine in di- and trinuclear palladium and platinum complexes containing ortho-substituted aromatic isocyanide

Cited by 31 publications

References 16 publications

Switchable Polymerization of Norbornene Derivatives by a Ferrocene‐Palladium(II) Heteroscorpionate Complex

Switchable Polymerization of Norbornene Derivatives by a Ferrocene‐Palladium(II) Heteroscorpionate Complex

Systematic Conversion of Single Walled Carbon Nanotubes into n-type Thermoelectric Materials by Molecular Dopants

Gold(I)-induced chelate ring-opening of palladium(II) and platinum(II) triphos complexes

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