Neutral-Type One-Dimensional Mixed-Valence Halogen-Bridged Platinum Chain Complexes with Large Charge-Transfer Band Gaps

A new fused ring compound, 2,6-dibutyl-4,8-dimethyl-1,5-dihydro-s-indacene (VII) (H2L), has been synthesized from 2,5-dimethyl-1,4-dibromomethylbenzene in almost quantitative yield. Two organomtallic binuclear complexes, [Cp*Fe-L-FeCp*] (1) and the mixed-valence compound [Cp*Fe-L-FeCp*]+ BF–4 (2), have been characterized by spectroscopic and electrochemical techniques. The cyclic voltammogram of 1 exhibits a potential difference of 668 mV between two redox peaks and the UV-vis-NIR spectra of compound 2 shows an intervalance charge transfer band at 1794 nm. The information gathered by these techniques indicates that the studied binuclear complex has strong interaction between the two metal centres.

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ChemInform Abstract: OBSERVATION OF AN INTERVALENCE CHARGE-TRANSFER BAND IN A MIXED-VALENCE RUTHENIUM DIMER BRIDGED BY A NONCONJUGATED NITROGEN DONOR LIGAND

Chemischer Informationsdienst ◽

10.1002/chin.198430283 ◽

1984 ◽

Vol 15 (30) ◽

Author(s):

M. J. K. GENO ◽

J. H. DAWSON

Keyword(s):

Charge Transfer ◽

Charge Transfer Band ◽

Mixed Valence ◽

Donor Ligand ◽

Nitrogen Donor Ligand ◽

Nitrogen Donor ◽

Intervalence Charge Transfer

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Electric-field effects on the charge-transfer excitation in quasi-one-dimensional halogen-bridged mixed-valence Pt complexes: [Pt(ethylenediamine)2] [Pt(ethylenediamine)2X2](ClO4)4(X=Cl,Br,I)

Physical Review B ◽

10.1103/physrevb.42.7398 ◽

1990 ◽

Vol 42 (12) ◽

pp. 7398-7404 ◽

Cited By ~ 44

Author(s):

Yoshiki Wada ◽

Masahiro Yamashita

Keyword(s):

Charge Transfer ◽

Electric Field ◽

Mixed Valence ◽

Electric Field Effects ◽

One Dimensional ◽

Field Effects ◽

Charge Transfer Excitation

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Observation of an intervalence charge-transfer band in a mixed-valence ruthenium dimer bridged by a nonconjugated nitrogen donor ligand

Inorganic Chemistry ◽

10.1021/ic00177a002 ◽

1984 ◽

Vol 23 (9) ◽

pp. 1182-1183 ◽

Cited By ~ 5

Author(s):

Maureen J. Kendrick Geno ◽

John H. Dawson

Keyword(s):

Charge Transfer ◽

Charge Transfer Band ◽

Mixed Valence ◽

Donor Ligand ◽

Nitrogen Donor Ligand ◽

Nitrogen Donor ◽

Intervalence Charge Transfer

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EFFECT OF LIPID-PACKAGING ON THE CHARGE TRANSFER CHARACTERISTICS OF ONE-DIMENSIONAL, MIXED-VALENCE PLATINUM COMPLEXES

International Journal of Nanoscience ◽

10.1142/s0219581x02000383 ◽

2002 ◽

Vol 01 (05n06) ◽

pp. 391-395 ◽

Cited By ~ 6

Author(s):

CHANG-SOO LEE ◽

YASUHIRO HATANAKA ◽

NOBUO KIMIZUKA

Keyword(s):

Charge Transfer ◽

Mixed Valence ◽

Platinum Complexes ◽

Organic Media ◽

One Dimensional ◽

Transfer Characteristics ◽

Absorption Characteristics

Lipid-packaged platinum complexes of [ Pt ( en )2][ Pt X2( en )2] (X= Cl , Br , I ) are newly synthesized and their morphology and charge transfer (CT) absorption characteristics are compared in organic media. They show remarkably red-shifted CT absorption characteristics, which are ascribed to the significantly promoted exciton delocalization along the chains.

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