Spectroscopic evidence for argentophilicity in structurally characterized luminescent binuclear silver(I) complexes

被引：348

作者：

Che, CM ^{[1
]}

Tse, MC ^{[1
]}

Chan, MCW ^{[1
]}

Cheung, KK ^{[1
]}

Phillips, DL ^{[1
]}

Leung, KH ^{[1
]}

机构：

[1] Univ Hong Kong, Dept Chem, Hong Kong, Hong Kong, Peoples R China

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2000年 / 122卷 / 11期

关键词：

D O I：

10.1021/ja9904890

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A spectroscopic and structural investigation of binuclear silver(I) complexes supported by aliphatic phosphine ligands, namely [Ag(PCy3)(O2CCF3)](2) (1), [Ag-2(mu-dcpm)(2)]X-2 (X = CF3SO3, 2; PF6, 3; dcpm = bis(dicyclohexylphosphino)methane), and [Ag-2(mu-dcpm)(mu-O2CCF3)(2)] (4), is described. X-ray structural analyses of 1-4 reveal Ag-Ag separations of 3.095(1), 2.918 (av), 2.923 (av), and 2.8897(9) Angstrom, respectively. Due to the optical transparency of the phosphine ligands, the UV-vis absorption band at 261 nm in CH3CN for 2 and 3 is assigned to a 3 delta sigma* -> 5p sigma transition originating from Ag(I)-Ag(I) interactions. The argentophilic nature of this band is verified by the resonance Raman spectrum of 2 with 273.9 nm excitation, where virtually all of the Raman intensity appears in the Ag-Ag stretch fundamental (80 cm(-1)) and overtone bands. Complexes 2 and 3 exhibit photoluminescence in the solid state at room temperature.

引用

页码：2464 / 2468

页数：5

共 56 条

[41] RELATIONSHIPS BETWEEN METAL-METAL FORCE-CONSTANTS AND METAL-METAL SEPARATIONS FOR AG2 AND PD2 SYSTEMS - CRYSTAL AND MOLECULAR-STRUCTURES OF AG2(DMB)2X2 (X = CL, BR, I DMB = 1,8-DIISOCYANO-P-MENTHANE) AND CIS-PD(CNC(CH3)3)2CL2 COMPLEXES [J].

PERREAULT, D ;

DROUIN, M ;

MICHEL, A ;

HARVEY, PD .

INORGANIC CHEMISTRY, 1993, 32 (10) :1903-1912

[42] Precious metal polymers: platinum or gold atoms in the backbone [J].

Puddephatt, RJ .

CHEMICAL COMMUNICATIONS, 1998, (10) :1055-1062

[43] Strong closed-shell interactions in inorganic chemistry [J].

Pyykko, P .

CHEMICAL REVIEWS, 1997, 97 (03) :597-636

[44] Preparation of polymer-coated functionalized silver nanoparticles [J].

Quaroni, L ;

Chumanov, G .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (45) :10642-10643

[45] SILVER 2-PYRIMIDINOLATE DIHYDRATE, [AG(C4H3N2O)].2H2O - A CASE OF PSEUDOSYMMETRY [J].

QUIROS, M .

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 1994, 50 :1236-1239

[46] Bis(μ-N,N′-η2-N,O-η2-N′,O′-di(o-methoxyphenyl)formamidinato)disilver(I):: an interesting coordination geometry for silver(I) and room temperature fluorescence [J].

Ren, T ;

Lin, C ;

Amalberti, P ;

Macikenas, D ;

Protasiewicz, JD ;

Baum, JC ;

Gibson, TL .

INORGANIC CHEMISTRY COMMUNICATIONS, 1998, 1 (01) :23-26

[47] ELECTRONIC ABSORPTION AND EMISSION-SPECTRA OF BINUCLEAR PLATINUM(II) COMPLEXES - CHARACTERIZATION OF THE LOWEST SINGLET AND TRIPLET EXCITED-STATES OF PT2(H2P2O5)44- [J].

RICE, SF ;

GRAY, HB .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1983, 105 (14) :4571-4575

[48] TRIPLE INTERPENETRATION IN [AG(4,4'-BIPYRIDINE)][NO3], A CATIONIC POLYMER WITH A 3-DIMENSIONAL MOTIF GENERATED BY SELF-ASSEMBLY OF T-SHAPED BUILDING-BLOCKS [J].

ROBINSON, F ;

ZAWOROTKO, MJ .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1995, (23) :2413-2414

[49] Ludwig Mond lecture. High-carat gold compounds [J].

Schmidbaur, H .

CHEMICAL SOCIETY REVIEWS, 1995, 24 (06) :391-&

[50]

Schmidbaur H., 1990, GOLD BULL, V23, P11, DOI DOI 10.1007/BF03214710

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