TY - JOUR
T1 - Tellurotungstate-Based Organotin-Rare-Earth Heterometallic Hybrids with Four Organic Components
AU - Han, Qing
AU - Liu, Jian Cai
AU - Wen, Yue
AU - Chen, Li Juan
AU - Zhao, Jun Wei
AU - Yang, Guo Yu
N1 - Publisher Copyright:
© 2017 American Chemical Society.
PY - 2017/6/19
Y1 - 2017/6/19
N2 - A family of unprecedented tellurotungstate-based organotin-rare-earth (RE) heterometallic hybrids [H2N(CH3)2]6H12Na2 {[Sn(CH3)W2O4(IN)][(B-α-TeW8O31)RE(H2O) (Ac)]2}2·25H2O [RE = CeIII (1), PrIII (2), NdIII (3), SmIII (4), EuIII (5), GdIII (6), TbIII (7); HIN = isonicotinic acid, HAc = acetic acid] were synthesized and characterized by elemental analyses, IR spectra, UV spectra, thermogravimetric analyses, powder X-ray diffraction, and single-crystal X-ray diffraction. The polyoxoanionic skeletons {[Sn(CH3)W2O4(IN)][(B-α-TeW8O31)RE(H2O) (Ac)]2}220- of 1-7 are constructed from two symmetrical units {[Sn(CH3)W2O4(IN)][(B-α-TeW8O31)RE(H2O) (Ac)]2}10- linked by two acetate connectors, which not only represent the first inorganic-organic hybrid RE-substituted tellurotungstates involving three different organic ligands, but also stand for the first samples of organotin-RE heterometallic polyoxometalate derivatives. The solid-state luminescent emission properties of 2-5 mainly display the characteristic emission bands of REIII cations, whereas during the emission procedure of 7, [B-α-TeW8O31]10- segments make a nonignorable contribution to the PL behavior of 7 accompanying by the occurrence of the intramolecular energy transfer from O→W LMCT energy to Tb3+ centers. Furthermore, 4@CTAB composites with peanutlike and honeycombed morphologies were prepared by a surfactant cetyltrimethylammonium bromide (CTAB). The time-resolved emission spectra of the 4@CTAB composite with CTAB/4 = 0.033/0.05 consolidate the energy transfer from CTAB to REIII centers. Variable-temperature magnetic susceptibility measurements for 2, 3, and 4 were performed.
AB - A family of unprecedented tellurotungstate-based organotin-rare-earth (RE) heterometallic hybrids [H2N(CH3)2]6H12Na2 {[Sn(CH3)W2O4(IN)][(B-α-TeW8O31)RE(H2O) (Ac)]2}2·25H2O [RE = CeIII (1), PrIII (2), NdIII (3), SmIII (4), EuIII (5), GdIII (6), TbIII (7); HIN = isonicotinic acid, HAc = acetic acid] were synthesized and characterized by elemental analyses, IR spectra, UV spectra, thermogravimetric analyses, powder X-ray diffraction, and single-crystal X-ray diffraction. The polyoxoanionic skeletons {[Sn(CH3)W2O4(IN)][(B-α-TeW8O31)RE(H2O) (Ac)]2}220- of 1-7 are constructed from two symmetrical units {[Sn(CH3)W2O4(IN)][(B-α-TeW8O31)RE(H2O) (Ac)]2}10- linked by two acetate connectors, which not only represent the first inorganic-organic hybrid RE-substituted tellurotungstates involving three different organic ligands, but also stand for the first samples of organotin-RE heterometallic polyoxometalate derivatives. The solid-state luminescent emission properties of 2-5 mainly display the characteristic emission bands of REIII cations, whereas during the emission procedure of 7, [B-α-TeW8O31]10- segments make a nonignorable contribution to the PL behavior of 7 accompanying by the occurrence of the intramolecular energy transfer from O→W LMCT energy to Tb3+ centers. Furthermore, 4@CTAB composites with peanutlike and honeycombed morphologies were prepared by a surfactant cetyltrimethylammonium bromide (CTAB). The time-resolved emission spectra of the 4@CTAB composite with CTAB/4 = 0.033/0.05 consolidate the energy transfer from CTAB to REIII centers. Variable-temperature magnetic susceptibility measurements for 2, 3, and 4 were performed.
UR - http://www.scopus.com/inward/record.url?scp=85020926526&partnerID=8YFLogxK
U2 - 10.1021/acs.inorgchem.7b00924
DO - 10.1021/acs.inorgchem.7b00924
M3 - Article
C2 - 28581730
AN - SCOPUS:85020926526
SN - 0020-1669
VL - 56
SP - 7257
EP - 7269
JO - Inorganic Chemistry
JF - Inorganic Chemistry
IS - 12
ER -