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<TEX>$^1H$</TEX> NMR Study of mono-and di-cyanide ligated Hemin Complexes as Models of Hemoproteins
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1994, v.7 no.4, pp.505-515
Lee,
K., Kim,
N. J., Kweon,
J., Rhee,
J., &
Choi,
Y.
(1994). <TEX>$^1H$</TEX> NMR Study of mono-and di-cyanide ligated Hemin Complexes as Models of Hemoproteins. Analytical Science and Technology, 7(4), 505-515.
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Abstract
<TEX>$^1H$</TEX> NMR spectra for monocyanide ligated ferriprotoporphyrin(hemin) complex and dicyanide coordinated hemin complex in dimethylsulfoxide(DMSO-<TEX>$d_6$</TEX>) solution have been recorded and analyzed. NMR spectra of hemin-cyanide complexation in DMSO-<TEX>$d_6$</TEX> exhibit that the cyanide ligation to hemin is temperature-dependent. Thermodynamic parameters for the monocyanide ligated hemin to dicyanide ligated hemin are consistent with endothermic process with <TEX>${\Delta}H^{\circ}
- keywords
- <TEX>$^1H$</TEX> NMR, Hemin complex
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