Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Randy F. Johnston"'
Autor:
Zhen Pang, Randy F. Johnston
Publikováno v:
Polyhedron. 18:3469-3477
The kinetics of the thermal substitution of (η5-C5H4C(O)CH3)Mn(CO)2SC4H8, (η1:η5-C5H4C(O)CH2SCH3)Mn(CO)2 and (η1:η5-C5H4C(O)CH2CH2SCH3)Mn(CO)2 by phosphines and phosphites have been measured in toluene and xylene. A proposed dissociative mechani
Ultrafast Ring Closure Energetics and Dynamics of Cyclopentadienyl Manganese Tricarbonyl Derivatives
Autor:
Tianjie Jiao, Randy F. Johnston, Theodore J. Burkey, Todd A. Heimer, Edwin J. Heilweil, Valeria D. Kleiman,¶,‖ and, Zhen Pang
Publikováno v:
Journal of the American Chemical Society. 121:4618-4624
Ring closure following flash photolysis in alkane solvents has been detected for several complexes in the series (η5-C5H4R)Mn(CO)3 where R = COCH3 (1), COCH2SCH3 (2), CO(CH2)2SCH3 (3), COCH2OCH3 (4), (CH2)2CO2CH3 (5), and CH2CO2CH3 (6). In each case
Publikováno v:
Journal of Electroanalytical Chemistry. 466:2-7
The voltammetric behavior of polyuridylic acid+mercuric acetate solutions at hanging mercury drop electrodes has been studied in neutral aqueous solution. Adsorbed polyuridylic acid (poly(U)) efficiently accumulates mercury, resulting in a peak volta
Publikováno v:
Organometallics. 16:120-123
The quantum yields for photosubstitution of (η5-C5H4R)Mn(CO)3 (R = H, COCH3, COCH2OCH3, COCH2SCH3, CO(CH2)2SCH3, CH2CO2CH3, (CH2)2CO2CH3)) in heptane for 337 nm irradiation are 0.67, 0.82, 0.64, 1.00, 0.82, 0.80, and 1.05, respectively. The yields o
Publikováno v:
Journal of Organometallic Chemistry. 526:25-32
Chelates of the parent compounds ( η 5 -C 5 H 4 C(O)CH 2 OCH 3 )Mn(CO) 3 ( 1 ). ( η 5 -C 5 H 4 C(O)CH 2 SCH 3 )Mn(CO) 3 ( 2 ), ( η 5 -C 5 H 4 C(O)CH 2 CH 2 SCH 3 )Mn(CO) 3 ( 3 ), ( η 5 -C 5 H 4 CH 2 COOCH 3 )Mn(CO) 3 ( 4 ), and ( η 5 -C 5 H 4 C(
Publikováno v:
Journal of Organometallic Chemistry. 509:123-129
Nine different substituted cyclopentadienyl ligands, which have substituents that may either chelate or bridge to second metal center, have been prepared from nucleophilic substitution reactions of esters or alkyl halides with NaCp. The sodium or tha
Publikováno v:
Electrochimica Acta. 40:473-477
The electrochemical properties of (η5-C5Me5)2TiCl2, (η5-C5H4Me)2TiCl2, (η5-C5H4Cl)2TiCl2, (η5-C5H4CO2Me)2TiCl2, and (η5-C5H5)2TiCl2 were examined in THF. two reduction processes. The first reduction processes of (η5-C5H4Me)2TiCl2, (η5-C5H4Cl)2
Publikováno v:
Inorganica Chimica Acta. 221:85-92
The results of an electrochemical investigation of the reduction of (η 5 -C 5 H 5 )Mn(CO) 3 , (η 5 -C 5 H 4 COOCH 3 )Mn(CO) 3 , (η5-C 5 H 4 CH 3 )Mn(CO) 3 and (η 5 -C 5 H 4 Cl)Mn(CO) 3 are reported. Each compound was characterized with at least a
Autor:
Randy F. Johnston
Publikováno v:
Journal of Coordination Chemistry. 31:57-66
Eight arylisocyanides containing one or more electron-withdrawing substituents were synthesized. The σ-donating and π-accepting abilities of these isocyanides were evaluated by examining the spectroscopic and electrochemical properties of the penta
Publikováno v:
Journal of Crystallographic and Spectroscopic Research. 22:755-759
(Chloranilato)bis(tri-n-butylphosphine)palladium(II), [Pd(C6Cl2O4){P(C4H9)3}2] (chloranilic acid=2,5-dichloro-3,6-dihydroxy-p-benzoquinone): FW=718.02,P21/c,a=21.729(6),b=17.293(5),c=21.010(9) A,β=112.62(3)°,V=7287.42 A3,Z=8,D c=1.309mg m−3, Mo,