Structural elucidation of transition metal complex by single crystal EPR study

Single-crystal electron paramagnetic resonance study of the interstitial position of Mn(II) in dipotassium diaquabis(malonato-κ2O,O′) zincate(II) dihydrate

“…It is clear from these figures that good agreement is found between these two data. A few typical values have been selected for comparison with the present results and are given in table 6 [6,14,[31][32][33][34].…”

“…If the separation between the sextets increases on the high-field side when the direction of the magnetic field is parallel to the Z-axis, then D/A will be negative or D/A will be positive for the reverse case. In all the systems studied so far, A is negative [6,14,[31][32][33][34] and is assumed to be so in the present case. In the present work, the separation of the sextets increases towards the high-field side and hence D/A is negative, which implies that D is positive.…”

EPR and Optical Studies of Malonato Bridged Zinc Coordination Polymer with VO(II) as Probe: An Interstitial Location

“…[14][15][16] Past few years our research group has focus on single crystal EPR studies of transition metal ions doped zinc malonate complexes. [17][18][19][20][21] In this way, we have chosen an alkaline metal based zinc malonate polymer as good dopant to incorporate by vanadyl ion. The present exploration of the EPR and optical studies of vanadyl doped in Diaquacesiumaquabismalonatozincate polymer (here after abbreviated as DCBZ) has been undertaken to find the spin Hamiltonian parameters, the location of paramagnetic impurity and other structural and bonding parameters.…”

Effect of paramagnetic doping on an inorganic polymer triaquadipotassiumbis(malonato)zincate: spectroscopic investigation

“…If D is very large, five bunches of resonance lines, each split into sextets, are observed. During our studies of this impurity ion in various host lattices (8), the ion was found to occupy substitutional, interstitial or both, depending on the concentration of the ion and geometrical coordination. The importance of the malonato ligand in treating malignant tumors when coordinated with platinum (US Patent 4140707) was studied.…”

“…Electron paramagnetic resonance (EPR) of Mn(II) has been investigated widely in octahedral, tetrahedral and cubic environments (1)(2)(3)(4)(5)(6)(7)(8)(9), since Mn(II), being a d 5 ion, is sensitive to distortions from perfect octahedral or tetrahedral symmetries. Hence, it is used as a paramagnetic impurity to identify distortions, phase transitions, structural and dynamic aspects of crystalline states, etc.…”