1H ENDOR Spectra Research Articles

1H and 13C endor investigations in trissarcosine calcium bromide doped with manganese

1H and 13C ENDOR spectra of trissarcosine calcium bromide (TSCB) doped with Mn 2+ ions were analyzed. From the ENDOR data measured at a temperature of 4.2 K the positions of all protons in the unit cell were determined and the space group Pnma is confirmed for the TSCB lattice.

1H endor investigations in tris-sarcosine-calcium chloride doped with manganese

1H ENDOR spectra of the ferroelectric tris-sarcosine-calcium chloride doped with Mn 2+ are reported. All identified protons are located in CH 3 groups of sarcosine molecules. From the ENDOR data, the distances of the CH 3 protons from the manganese ion were determined.

Single-crystal endor on bis-(diethyl-dithiocarbamato)Cu(II): bis-(diethyl-dithiocarbamato)Zn(II)

An investigation of the 1H ENDOR spectra of Cu(ct 2dtc) 2 substituted into single crystals of Zn(ct 2dtc) 2 is reported. The symmetry of the CuZnS 8 unit resulting upon incorporation of the Cu complex in the Zn host appears to be considerably different from the Zn 2S 8 unit in pure Zn(et 2dtc) 2. Contributions to the ESR linewidth and the occurrence of spin-flip lines are discussed.

Nitrogen and proton endor of vitamin B 12r

Solutions of B 12r in various solvents have been investigated for optimum conditions of 14N- and 1H-ENDOR spectra at liquid helium temperature. For 14N of the benzimidazole ligand the full hyperfine and quadrupole tensor are reported. 1H-ENDOR spectra are discussed in terms of intramolecular and axial ligand protons for both base on and base off states.