Comparative optical studies of lanthanide complexes with three types of phosphoro-azo derivatives of β-diketones
摘要:
A new class of lanthanide compounds of the formula Na[LnL(4)]. H2O and LnC(3). 2H(2)O (where L = Wo or Az; Wo = CCl3-C(O)-N-P(O)-(OCH3)(2); Az = C6H5-C(O)-N-P(O)[N(CH2)(2)](2); C = CCl3-C(O)-N-P(O)(NHC6H5)(2)) was obtained from mixed solvent solutions with the three types of phosphoro-azo derivatives of the beta-diketones. Spectroscopic properties of these complexes are investigated and related to the structure and single crystal spectra of one of the above mentioned compounds [Amirkhanow et al., J. Appl. Spectr. 62 (1995) 5; Amirkhanow et al., Acta Phys. Polonica 90 (1996) 455]. The strong interaction of the ligands with the lanthanides was confirmed both by IR and electronic spectra. The intensities and splitting pattern of the electronic levels were used for the structure determination. IR and Raman spectra in the FIR and MIR regions have been recorded for solid lanthanide(III) (Eu, Pr, Nd) complexes with phosphoro-azo-beta-diketones (Wo, Az and C). The normal coordinate analysis and potential energy distribution were performed for Ln(NPC2O4) molecular system consisting four chelate rings. On that basis, the assignment of the bands observed is proposed and related to the crystal structure of the complexes studied. (C) 1999 Elsevier Science B.V. All rights reserved.
New carbacylamidophosphates (CAPh) and CAPh-containing coordination compounds: structural peculiarities
作者:Olena O. Litsis、Iuliia O. Shatrava、Oleksiy V. Amirkhanov、Vladimir A. Ovchynnikov、Tatiana Yu. Sliva、Svetlana V. Shishkina、Viktoriya V. Dyakonenko、Oleg V. Shishkin、Vladimir M. Amirkhanov
DOI:10.1007/s11224-015-0701-x
日期:2016.2
2,2,2-trichloroacetamide (CCl3C(O)N(H)P(O)(NHC6H5)2, HL3), Nd(NO3)3(HL4)2 (5), Nd(NO3)3(HL5)2 (6) and UO2(NO3)2(HL5)2 (7) (HL4=CH3(C4H3N)C(O)N(H)P(O)(N(CH3)2)2 –N-(bis(dimethylamino)phosphoryl)-1-methyl-1H-pyrrole-2-carboxamide, HL5=CH3(C4H3N)C(O)N(H)P(O)(N(C2H5)2)2—N-(bis(diethylamino)phosphoryl)-1-methyl-1H-pyrrole-2-carboxamide) have been synthesized. Obtained compounds were characterized by means