Studies on some metal-hydrazine complexes

Novel Polynuclear Nickel(II) Complex: Hydrazine, Sulfato, and Hydroxo Bridging in an Unusual Metal Hexamer. Crystal Structure and Magnetic Properties of [Ni6(N2H4)6(SO4)4(OH)2(H2O)8](SO4)(H2O)10

“…A compound with the general composition NiSO 4 3 3N 2 H 4 was synthesized and characterized by means of IR spectroscopy and powder X-ray diffraction. 8 A reaction between hydrazine sulfate and NiSO 4 in an aqueous solution yielded Ni(N 2 H 5 ) 2 -(SO 4 ) 2 . 9 Although a number of powder X-ray diffraction studies of nickel(II) complexes with hydrazine were undertaken, no crystal structure of [Ni(N 2 H 4 ) n ] 2þ was reported.…”

“…A study of coordination compounds formed in the aqueous NiSO 4 −N 2 H 4 system was also undertaken. A compound with the general composition NiSO 4 ·3N 2 H 4 was synthesized and characterized by means of IR spectroscopy and powder X-ray diffraction . A reaction between hydrazine sulfate and NiSO 4 in an aqueous solution yielded Ni(N 2 H 5 ) 2 (SO 4 ) 2 …”

Uranium stripping from tri-n-butyl phosphate by hydrofluoric acid solutions with hydrazine addition

“…2(1). Comparison of IR spectra with the spectra of uranium compounds (Batsanov and Gagarinskii, 1964;Tsvetkov et al, 1973;Varga et al, 2011), hydrazine (Durig et al, 1966) and some metal halides with hydrazine (Athavale and Iyer, 1967;Earnshaw et al, 1964;Glavič and Slivnik, 1970;Sacconi and Sabatini, 1963) allowed the identification of several major regions. The band at 432 cm − 1 is due to the asymmetric stretching vibrations of the U-F.…”

Metal-Nitrogen Vibrations

“…In 1963, Sacconi and SabatinF8 working with the hydrazine complexes of Mn(II), Fe(II), Co(II), Ni(II), Cu(II), Zn(II), and Cd(II) halides, assigned the YMN vibration at 339-473 cmi . However, recent assignments by Athavale et al 79 for U0 2 (II), Th(IV), Ce(IV), and Ni(II) hydrazine complexes were in the range of 505-614 cmi . Further research appears necessary.…”