Kinetics of the Termolecular Insertion Reaction of Ground State Rhodium with Methane

1997 ◽  
Vol 119 (25) ◽  
pp. 5984-5985 ◽  
Author(s):  
Mark L. Campbell
Keyword(s):  
Ground State ◽  
Insertion Reaction ◽  
Kinetics Of

Kinetics of XY and Ising ordering in a time-dependent Ginzburg-Landau model with O(2)×Z_{2} ground-state degeneracy

1997 ◽  
Vol 56 (6) ◽  
pp. 6362-6369 ◽  
Author(s):  
Sung Lee ◽  
Bongsoo Kim ◽  
Jong-Rim Lee
Keyword(s):  
Ground State ◽  
Time Dependent ◽  
Ginzburg Landau ◽  
Landau Model ◽  
Ground State Degeneracy ◽  
Kinetics Of

Ground-State Kinetics of Bistable Redox-Active Donor–Acceptor Mechanically Interlocked Molecules

2013 ◽  
Vol 47 (2) ◽  
pp. 482-493 ◽  
Author(s):  
Albert C. Fahrenbach ◽  
Carson J. Bruns ◽  
Hao Li ◽  
Ali Trabolsi ◽  
Ali Coskun ◽  
...  
Keyword(s):  
Ground State ◽  
Interlocked Molecules ◽  
Redox Active ◽  
Donor Acceptor ◽  
Kinetics Of ◽  
Active Donor

scholarly journals A deep UV trigger for ground-state ring-opening dynamics of 1,3-cyclohexadiene

2019 ◽  
Vol 5 (9) ◽  
pp. eaax6625 ◽  
Author(s):  
Jennifer M. Ruddock ◽  
Haiwang Yong ◽  
Brian Stankus ◽  
Wenpeng Du ◽  
Nathan Goff ◽  
...  
Keyword(s):  
Electronic State ◽  
Ground State ◽  
Ground Electronic State ◽  
Source Analysis ◽  
Time Resolved ◽  
X Ray Scattering ◽  
Linac Coherent Light Source ◽  
Scattering Anisotropy ◽  
Kinetics Of ◽  
Single Bonds

We explore the photo-induced kinetics of 1,3-cyclohexadiene upon excitation at 200 nm to the 3p state by ultrafast time-resolved, gas-phase x-ray scattering using the Linac Coherent Light Source. Analysis of the scattering anisotropy reveals that the excitation leads to the 3px and 3py Rydberg electronic states, which relax to the ground state with a time constant of 208 ± 11 fs. In contrast to the well-studied 266 nm excitation, at 200 nm the majority of the molecules (76 ± 3%) relax to vibrationally hot cyclohexadiene in the ground electronic state. A subsequent reaction on the ground electronic state surface leads from the hot cyclohexadiene to 1,3,5-hexatriene, with rates for the forward and backward reactions of 174 ± 13 and 355 ± 45 ps, respectively. The scattering pattern of the final hexatriene product reveals a thermal distribution of rotamers about the carbon-carbon single bonds.

Kinetics of the Reaction of Ground State Oxygen Atoms with Trichloroethylene from 295 to 1127 K: Comparison to Reactions with Some Other Substituted Ethylenes

1995 ◽  
Vol 99 (34) ◽  
pp. 12809-12813 ◽  
Author(s):  
Jasmina Hranisavljevic ◽  
Arthur Fontijn
Keyword(s):  
Ground State ◽  
Kinetics Of ◽  
Oxygen Atoms

Protonation of some non-transition metal phthalocyanines — spectral and photophysicochemical consequences

2012 ◽  
Vol 16 (07n08) ◽  
pp. 885-894 ◽  
Author(s):  
Abimbola O. Ogunsipe ◽  
Mopelola A. Idowu ◽  
Taofeek B. Ogunbayo ◽  
Isaac A. Akinbulu
Keyword(s):  
Transition Metal ◽  
Rate Constant ◽  
Rate Equation ◽  
Aluminum Chloride ◽  
Ground State ◽  
Triplet States ◽  
Metal Phthalocyanines ◽  
Excited Triplet ◽  
Kinetics Of ◽  
Excited Triplet States

The photophysics and photochemistry of phthalocyanine complexes of magnesium (MgPc), aluminum chloride (ClAlPc) and zinc (ZnPc) are studied in N,N′-dimethylformamide (DMF). The values obtained for the photophysical and photochemical parameters are normal for simple metallophthalocyanine (MPc) complexes. Protonation of the azomethine bridges reduced the photoactivities of the complexes considerably; however the excited triplet states of the protonated species are more stable towards ground state oxygen. The interaction of the non-protonated MPcs with ground state oxygen is shown to be diffusion-assisted, with bimolecular rate constant values of the order of 1010 M-1.s-1. MgPc could not be protonated; it was easily demetalated by the protonating acid. The kinetics of the demetalation yielded the rate equation: Rate = 0.1[MgPc][H+]2/3

Recombination of ground state halogen atoms. Part 2.—Kinetics of the overall recombination of chlorine atoms

1968 ◽  
Vol 64 (0) ◽  
pp. 2698-2707 ◽  
Author(s):  
M. A. A. Clyne ◽  
D. H. Stedman
Keyword(s):  
Ground State ◽  
Chlorine Atoms ◽  
Halogen Atoms ◽  
Kinetics Of

Compounds of Nickel(II) and Copper(II) With 3,5,5,13,13,15-Hexamethyl-1,2,6,9,12-pentaazacyclopentadeca-2,15-diene

1987 ◽  
Vol 40 (12) ◽  
pp. 1941
Author(s):  
NF Curtis ◽  
KR Morgan
Keyword(s):  
Ground State ◽  
Singlet Ground State ◽  
Amino Ketone ◽  
Triplet Ground State ◽  
Magnetic Susceptibilities ◽  
Kinetics Of ◽  
Formation Of Complexes

Reaction of the bis-β-amino ketone 4,4,12,12-tetramethyl-5,8,11-triazapentadecane-2,14-dione diperchlorate with nickel(II) or copper(II) in the presence of hydrazine results in the formation of complexes of the tetradentate pentaaza macrocycle 3,5,5,13,13,15-hexamethyl-1,2,6,9,12-pentaazacyclopentadeca-2,15-diene hpd. Singlet ground state [Ni( hpd )] (ClO4)2, triplet ground state [Ni( hpd )(NCS)2], [Ni( hpd )A] ClO4 (A = acac -, 1/2(C2O42-), NO2-1,[Ni( hpd )(NO3)] NO3 and [Cu( hpd )](C1O4)2 were prepared. Infrared, electronic, 1H and 13C n.m.r. spectra, magnetic susceptibilities, and the kinetics of the slow acid promoted aquation reactions of the cations at 25�C in HCl/NaCl solutions (I= 1 mol 1-1) are reported.

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