Complexes of esters of ethylenediphosphonic acid with lanthanide nitrates—synthesis and structure

Abstract

The lanthanide complexes L 2 Ln(NO 3 ) 3 (3) and L 3 [Ln(NO 3 ) 3 ] 2 (5) (Stewart and Siddall III. J Inorg Nucl Chem 1971, 33, 2965-2970

Efficient dye degradation and THz spectra of {PMo12} based rare earth phosphine oxide complexes

“…The infrared spectrum of H 3 PMo 12 O 40 shows the characteristic frequency of Keggin POMs in the range of 1100-600 cm −1 : P-Oa (1065 cm −1 ), MoOd (963 cm −1 ), Mo-Ob-Mo (870 cm −1 ), and Mo-Oc-Mo (787 cm −1 ), which are consistent with the values reported in the literature 48. For L, the characteristic absorption peak of PO bond stretching vibration is 1260 cm −1 , and the characteristic absorption peaks produced by P-O-C bond stretching vibration are 1028 cm −1 and 1048 cm −1 , which are similar to the values reported in the literature 49. The infrared spectra of complexes1-10 show the characteristic vibrational absorption peaks produced by [PMo 12 O 40 ] 3− and L ligands.…”

“…48 For L, the characteristic absorption peak of PO bond stretching vibration is 1260 cm −1 , and the characteristic absorption peaks produced by P–O–C bond stretching vibration are 1028 cm −1 and 1048 cm −1 , which are similar to the values reported in the literature. 49 The infrared spectra of complexes 1–10 show the characteristic vibrational absorption peaks produced by [PMo 12 O 40 ] 3− and L ligands. Compared with the infrared spectrum of H 3 PMo 12 O 40 , the characteristic peaks of complexes 1–10 vas (Mo–Ob–Mo) and vas (Mo–Oc–Mo) move to the high frequency region by about 10 cm −1 and 17 cm −1 , respectively, resulting in a blue shift, which may be attributed to the stronger interaction between metal ions.…”

Facile fabrication and characterization of rare earth complexes based on Keggin-type polyoxometalate with highly efficient activity for photocatalytic degradation of MO

“…S7-S12 †). The IR spectra show that for L, 1260 cm −1 is the stretching vibration absorption peak of the PO bond; 1035 cm −1 and 1055 cm −1 are the vibration absorption peaks of P-O-C. 44 For H 3 PW 12 O 40 , 1081 cm −1 is the vibration absorption peak of the P-O bond, 982 cm −1 is the vibration absorption peak of WO, 889 cm −1 is the vibration absorption peak of W-Oc-W, 797 cm −1 is the vibration absorption peak of W-Oe-W, and 595 cm −1 is the bending vibration absorption peak of the P-O bond. 45 Since complexes 1-6 have the same coordination pattern, only the IR spectrum of complex 1 is discussed in detail here.…”