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Titolo: PROTON NMR-SPECTROSCOPY AS A PROBE OF DINUCLEAR COPPER(II) CENTERS
Autore: HOLZ RC; BRINK JM;
- Indirizzi:
- UTAH STATE UNIV,DEPT CHEM & BIOCHEM LOGAN UT 84322
- Titolo Testata:
- Inorganic chemistry
fascicolo: 21,
volume: 33,
anno: 1994,
pagine: 4609 - 4610
- SICI:
- 0020-1669(1994)33:21<4609:PNAAPO>2.0.ZU;2-Y
- Fonte:
- ISI
- Lingua:
- ENG
- Soggetto:
- COMPLEXES; HEMOCYANIN; BINUCLEAR; MODELS; LIGAND;
- Tipo documento:
- Note
- Natura:
- Periodico
- Settore Disciplinare:
- Science Citation Index Expanded
- Citazioni:
- 21
- Recensione:
- Indirizzi per estratti:
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- Citazione:
- R.C. Holz e J.M. Brink, "PROTON NMR-SPECTROSCOPY AS A PROBE OF DINUCLEAR COPPER(II) CENTERS", Inorganic chemistry, 33(21), 1994, pp. 4609-4610
Abstract
One- and two-dimensional H-1 NMR spectra of the antiferromagneticallycoupled (mu-phenoxo)(mu-hydroxo)dicopper(II) complex [Cu-2(BPMP)(OH)](ClO4)(3) (1) were recorded. Complex 1 exhibits a H-1 NMR spectrum with 10 hyperfine shifted signals between +150 and -50 ppm, accounting for all of the protons in the complex. Clear COSY cross-signals are observed between hyperfine shifted signals, allowing the complete assignment of the H-1 NMR spectrum. These data, coupled with X-ray crystallographic results for 1, indicate that a paramagnetic dipolar relaxation mechanism is the dominant proton relaxation pathway.
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Documento generato il 01/12/20 alle ore 19:18:54