Coordination compounds of sodium, potassium, and calcium with benzo-15-crown-5-substituted terpyridines
摘要:
Sodium and potassium complexes with 4'-(4aEuro '-benzo-15-crown-5)methyloxy-2,2':6',2aEuro(3)-terpyridine (L(1)) and 4'-(4'-benzo-15-crown-5)oxy-2,2':6',2aEuro(3)-terpyridine (L(2)) and heteronuclear Na, K, Ca, and transition metal complexes with L(1) were synthesized. The structure of the complexes was proposed on the basis of elemental analysis data, IR spectra, and the results of earlier X-ray diffraction studies of L(2), [NaL(1)NCS], and [Na(2){Cu(L(1))(2)}(NCS)(3)]NCS center dot CH(3)CN.
Synthesis, vibrational spectra, and structure of 4′-(4″-benzo-15-crown-5)oxy-2,2′:6′,2″-terpyridine (L) and its transition metal complexes. Extraction and ion-selective properties of L
作者:N. M. Logacheva、V. E. Baulin、E. N. Pyatova、I. S. Ivanova、A. Yu. Tsivadze
DOI:10.1134/s1070328409090048
日期:2009.9
Complexes of Co(II), Ni(II), Zn(II), and Cu(II) perchlorates and hexafluorophosphates with 4′-(4″-benzo-15-crown-5)oxy-2,2′:6′,2″-terpyridine (L) [M(L)2](ClO4)2 · 3H2O and [M(L)2](PF6)2 · 2H2O were synthesized. The spectral criteria of ligand coordination through the terpyridine nitrogen atoms were established. An assumption concerning the benzo-15-crown-5 conformation in the ligand molecule in the