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X-band EPR spectrum of the xanthine oxidase very rapid intermediate generated with 2-hydroxy-6-methylpurine as reducing substrate. Data were acquired at 150 K, 9.47 GHz and 10 mW microwave power. Note the high value for g, which has been used in conjunction with S hyperfine analysis to indicate the presence of a highly covalent Mo S n bonding scheme in very rapid and, by inference, the oxidized Mo American Chemical Society.

X-band ESR for Mn-Sil-GP-tacn .

X-band ESR spectra at 293 K for the indicated spin probes in EMAA-0.6Na. Spectra are normalized to a common microwave frequency The corresponding extreme separation, 2A zz, is shown on the right. Downward and upward arrows point to the incipient shoulders in the low field and high field signals for 7DSE and lODND, respectively these shoulders are more pronounced for higher degrees of neutralization. From Ref. 82, with permission.

X-band ESR spectra in toluene solution at room temperature

X-band ESR spectra of

X-band ESR spectra of , generated via electrochemical reduction in DMF, as a function of temperature. Notice how the linewidth increases as T decreases.

X-Band ESR spectra of Co C104 in chloroform-benzene 2

X-band ESR spectra of L-a-alanine powder at room temperature. Exp.

X-Band ESR spectra of the corresponding bis-imidazole complex in dimethyl formamide at 77 K.

X-band ESR spectra of the powder sample ZASM before and after irradiation by a UVP standard mercury lamp peaking at 254 nm with a power of 4.07 raW cm for 5 min

X-band ESR spectra of VO at 278 K, in chemically cross-linked polyacrylamide gels swollen by water acetone mixture 80

X-band ESR spectra of VOx doped on aluminium fluoride

X-band ESR spectrum at 300 K of a nitroxide radical derived from Tinuvin 770, a hindered amine stabilizer , in heterophasic ABS. Fast and slow components are indicated. The extreme separation of the slow component is 63 G.

X-band ESR spectrum at 300 K of a nitroxide radical derived from Tinuvin 770, a hindered amine stabilizer, in heterophasic poly.

X-band ESR spectrum of frozen solution obtained after

X-band ESR spectrum of frozen solution obtained after in situ micro-bulk electrolysis of the parent trans-

X-band ESR spectrum of low-spin in cytochrome P450 showing g values at 2.42,2.25, and 1.92. The broad band at 2.07 is associated with the walls of the microwave cavity, v 9.496 GHz. Reproduced with permission from Herrick and Stapleton .

X-band experimental lOTorr CO after thermal decomposition 573 K in

X-band human serum transferrin at 77 K and 110 K respectively. A, B, and B2 designate features in the spectra attributable to three different binding environments of the metal. Reproduced with permission from Ref. 49

X-band HYEND spectrum of Rh, respectively. Modified with permission from . Copyright 2006, Wiley-VCH.

X-band Mims ENDOR spectrum showing resolved deuteron hyperfine couplings in nitrile hydratase. Solid trace represents sample in buffer, and dashed trace is sample in HjO buffer. The patterns are centered at the Larmor frequency of 1.97 MHz and show first-order splittings from both the hyperfine and quadrupole interactions. Conditions

X-band multiline signals of anion-treated PSII-enriched membranes. Sample treatments are indicated as in Table I. Dark-spectra were subtracted.

X-band RFQ-EPR spectra of Y122. Reprinted with permission from , Copyright 2000, American Chemicai Society.

X-band SMART HYSCORE spectrum of aquometmyoglobin taken at observer position g 6. The double-quantum cross-peaks are separated over four times the effective nuclear Zeeman frequency, which clearly differs from the tabulated value . From this shift, the positive sign of the hyperfine value can be determined ,

X-band spectrum of nitroxide I at 23 C in is 32.3 G. From Waggoner with permission.



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