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Featured researches published by R. P. Van Duyne.


ChemInform | 1979

RESONANCE RAMAN SPECTROELECTROCHEMISTRY. 6. ULTRAVIOLET LASER EXCITATION OF THE TETRACYANOQUINODIMETHANE DIANION

R. P. Van Duyne; Mary R. Suchanski; J. M. Lakovits; Allen R. Siedle; Keith D. Parks; Therese M. Cotton

The resonance Raman spectrum has been obtained for the electrogenerated dianion of tetracyanoquinodimethane (TCNQ) upon excitation of its lowest energy electronic transition (A,,, 330 nm) with a frequency doubled, flashlamp- pumped, Rhodamine 640 dye laser. For comparison we report the normal Raman spectrum of solid Li2TCNQmTHF. The elec- tron transfer induced frequency shifts for the second reduction step of TCNQ are measured and interpreted using the *-bond order changes determined from SCF-MO-CI and INDO/S electronic structure calculations as well as the *-bond length changes determined from a MNDO-SCF-MO calculation. Finally, the TCNQZ- Raman data is used to identify the oxidation state of TCNQ in the coordination complex (Co(acacen)(py)2)2TCNQ.


Inorganic Chemistry | 1981

Copper and Gold Metallotetrathiaethylenes

Allen R. Siedle; George A. Candela; T. F. Finnegan; R. P. Van Duyne; T. Cape; G. F. Kokoszka; P. M. Woyciejes; Joseph A. Hashmall


Inorganic Chemistry | 1980

Crystal and molecular structure of an unusual salt formed from the radical cation of tetrathiafulvalene (TTF) and the trichloromercurate anion (HgCl3), (TTF)(HgCl3)

Thomas J. Kistenmacher; Miriam Rossi; Chian C. Chiang; R. P. Van Duyne; A. R. Siedle


Journal of the American Chemical Society | 1979

Synthesis and characterization of the metamagnetic 1:1 1-D phase of the decamethylferrocenium 7,7,8,8-tetracyano-p-quinodimethanide: Fe(C/sub 5/(CH/sub 3/)/sub 5/)/sub 2//sup +/. (TCNQ)/sup -/

Joel S. Miller; Arthur H. Reis; Elizabeth Gebert; John J. Ritsko; W.R. Salaneck; L. Kovnat; T. Cape; R. P. Van Duyne


Inorganic Chemistry | 1980

(Tetrathiafulvalene)bis(acetylacetonato)palladium(II), (TTF)Pd(acac)2, a metallotetrathiaethylene containing neutral tetrathiafulvalene

Allen R. Siedle; Thomas J. Kistenmacher; R. M. Metzger; Chiun Shiung Kuo; R. P. Van Duyne; T. Cape


Journal of the American Chemical Society | 1978

Synthesis, structure, and spectral properties of tetrathiafulvalene trichloromercurate(II), an unusual metallotetrathiaethylene

Thomas J. Kistenmacher; Miriam Rossi; Chian C. Chiang; R. P. Van Duyne; T. Cape; Allen R. Siedle


ChemInform | 1978

SYNTHESIS, STRUCTURE, AND SPECTRAL PROPERTIES OF TETRATHIAFULVALENE TRICHLOROMERCURATE(II), AN UNUSUAL METALLOTETRATHIAETHYLENE

T. J. Kistenmacher; Miriam Rossi; Chian C. Chiang; R. P. Van Duyne; T. Cape; Allen R. Siedle


ChemInform | 1983

SURFACE-ENHANCED RESONANCE RAMAN SCATTERING FROM WATER-SOLUBLE PORPHYRINS ADSORBED ON A SILVER ELECTRODE

Therese M. Cotton; Steven Schultz; R. P. Van Duyne


ChemInform | 1982

CHARACTERIZATION OF BACTERIOCHLOROPHYLL INTERACTIONS IN VITRO BY RESONANCE RAMAN SPECTROSCOPY

Therese M. Cotton; R. P. Van Duyne


ChemInform | 1981

CRYSTAL AND MOLECULAR STRUCTURE OF AN UNUSUAL SALT FORMED FROM THE RADICAL CATION OF TETRATHIAFULVALENE (TTF) AND THE TRICHLOROMERCURATE ANION (HGCL3), (TTF)(HGCL3)

T. J. Kistenmacher; Miriam Rossi; Chian C. Chiang; R. P. Van Duyne; Allen R. Siedle

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Allen R. Siedle

National Institute of Standards and Technology

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T. Cape

Northwestern University

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George A. Candela

National Institute of Standards and Technology

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R. M. Metzger

University of Mississippi

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T. F. Finnegan

National Institute of Standards and Technology

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