Thermal and IR properties of Mg(II) complexes with heterocyclic ligands

A Zn(II)-Coordination Polymer Formed by Benzoate and 3-Pyridinemethanol Ligands: Synthesis, Spectroscopic Properties, Crystal Structure and Kinetics of Thermal Decomposition

“…However, considering the higher volatility of the 3-pyridinemethanol (b.p. $137-140 C) and literature data [42], we suggest that in the first step 3-pyridinemethanol ligands are liberated while in the second step pyrolysis of benzoate takes place.…”

Synthesis and characterization of transition metal-vitamin B13 complexes mixed with a co-vitamin

“…Nicotinamide (2) is a form of vitamin B3 and is an important component of several enzymes [17]. Besides the usual complexes with metal ions, a number of mixed ligand nicotinamide complexes has been reported [18][19][20][21][22]. Nicotinamide complexation appears to be a useful approach to increase the solubility of physiologically useful systems [23].…”

Structural features of a new [Fe(nicotinamide)2(H2O)4]·[Fe(H2O)6]·(SO4)2·2H2O complex

“…Upon complex formation the peak shifts to higher frequencies [21]. The band at 1620 cm -1 can also contain this shift (in the rage 1605 -1608 cm -1 [1]), suggest that the bond formation of the metal with the N of pyridine ring increases the dipolar contribution of C=N + in the heterocyclic ring. The mode known as amide II was identified as somewhat less intense band at 1580 cm -1 .…”

“…Heterocyclic compounds play a significant role in many biological systems, especially N−donor ligand systems being a component of several vitamins and drugs [1]. Therefore, many heterocyclic compounds and their metal complexes have been both structurally and spectroscopically investigated [1−6].…”