Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Larry O. Spreer"'
Publikováno v:
The Journal of Physical Chemistry A. 106:1131-1143
We present the first measurements of the excited-state relaxation dynamics of a bimetallic class III mixed-valence molecule. The 800 nm absorption of [Ru2TIEDCl4]+ (TIED = tetraiminoethylenedimacrocycle) relaxes in 250 and 1000 fs to at least two dif
Publikováno v:
Inorganic Chemistry. 37:2837-2840
Electroabsorption studies of a diruthenium tetraiminoethylenedimacrocycle show that very little change in molecular dipole moment or polarizability accompanies excitation of the high-intensity band...
Autor:
Anna Ganse, Christopher W. Lange, J. W. Otvos, Larry O. Spreer, Melvin Calvin, Christian B. Allan, Richard B. Frankel, D.Brent MacQueen
Publikováno v:
Inorganica Chimica Acta. 263:125-131
Dioxygen at atmospheric pressure attacks a cross-conjugated carbon-carbon double bond in a diiron complex to form two, like, keto macrocyclic iron(II) complexes. This reaction occurs with high yield in both solution and in the solid state. A dioxetan
Autor:
Christian B. Allan, Larry O. Spreer
Publikováno v:
The Journal of Organic Chemistry. 59:7695-7700
Publikováno v:
The Journal of Physical Chemistry. 94:7957-7960
Irradiation at 440 nm of a photosensitizer, Ru(bpy){sub 3}{sup 2+} (bpy = 2,2{prime}-bipyridine), in an ascorbate-buffered solution at room temperature under 1 atm of carbon dioxide in the presence of either of the nickel(II) complexes (Ni(14-aneN{su
Autor:
John W. Otvos, Larry O. Spreer, Karen J. Brewer, Carl A. Craig, Brian L. Scott, Scott E. Taylor, Melvin Calvin
Publikováno v:
Journal of Coordination Chemistry. 21:307-313
The complex [Ni(12-aneN4)(OH2)2](ClO4)2·H2O (12-aneN4 = 1,4,7,10-tetraazacyclododecane) has been prepared and its structure determined. The complex crystallizes in the orthorhombic space group P212121 With a= 11.173(5), b = 11.976(5) and c = 13.969(
Autor:
Larry O. Spreer, Christian B. Allan, J. W. Otvos, G. C. Papaefthymiou, Aiping Li, Richard B. Frankel, D. B. Macqueen, Melvin Calvin
Publikováno v:
Inorganic Chemistry. 33:1753-1755
A mixed-valence Fe[sup II]/Fe[sup III] compounds has been obtained by electrochemical oxidation of a bis-macrocyclic Fe[sup II]/Fe[sup III] complex. The binucleating ligand provides a delocalized [pi] system that facilitates electronic interaction be
Publikováno v:
Inorganic chemistry. 39(17)
Resonance Raman studies of Ni2TIED3+ (TIED = tetraiminoethylenedimacrocycle) reveal that many modes couple to the intense electronic transition centered at 725 nm, a feature that is nominally similar to the intense delocalized intervalence absorption
Publikováno v:
Journal of the American Chemical Society. 116:2187-2188
A new diruthenium complex prepared by aerobic oxidative dehydrogenation of trans-[Ru(cyclam)Cl[sub 2]]Cl (cyclam = 1,4,8,11-tetraazacyclotetradecane) has been investigated. Although the structure has not yet been unequivocally established by X-ray cr
Autor:
Larry O. Spreer, H. Scott Mountford, Brian L. Scott, John W. Otvos, Mark M. Richter, Karen J. Brewer, Melvin Calvin
Publikováno v:
Inorganic Chemistry. 31:717-718
The structure of a unique dinuclear bis-macrocyclic iron complex with a conjugated link between the low-spin iron(II) ions has been determined. This compound has unusually short iron-imine nitrogen bond lengths; it also has an intense near-infrared e