abstract
A series of new 1-D organic hybrid lanthanoid thioarsenates [Ln(dap)2]2(mu-eta(1):eta(1):eta(1):eta(1)-AsS4)(mu-eta(1):eta(1)-(AsS4)-S-V)]n {Ln = Ce (Ia), Pr (Ib), Nd (Ic), and Sm (Id); dap = diaminopropane} have been prepared under solvothermal conditions and structurally characterized. Compounds Ia-d contain two [(AsS4)-S-V](3)-linkage modes, namely mu-eta(1):eta(1):eta(1):eta(1)-(AsS4)-S-V and mu-eta(1):eta(1)-(AsS4)-S-V, which are linked alternately with [Ln(dap)2]3+ groups into 1-D neutral chains [Ln(dap)2]2(mu-eta(1):eta(1):eta(1):eta(1)-(AsS4)-S-V)(mu-eta(1):eta(1)-(AsS4)-S-V)]n, which represent the first examples of 1-D organic hybrid lanthanoid thioarsenates based on two [(AsS4)-S-V]3- linkage modes. To learn more about the influence of lanthanide contraction on the formation of lanthanoid thioarsenates, five organic hybrid lanthanoid thioarsenates [Ln(dap)3As(V)S(4)] [Ln = Tb (IIa), Dy (IIb), Ho (IIIc), and Er (IIId)] and [Er(dien)2As(V)S(4)] (III, dien = diethylenetriamine) are also provided. Both II and III contain neutral lanthanide-centred complexes, where the tetrahedral anion [(AsS4)-S-V](3)-acts as a chelating ligand to the complex [Ln(dap)(3)](3+)/[Er(dien)(2)](3+) cation. Their optical properties have been characterized by UV-vis spectra, and the density functional theory calculation of Ia has been performed.
keywords
TRANSITION-METAL COMPLEX; SOLVOTHERMAL SYNTHESES; CRYSTAL-STRUCTURES; CATALYTIC HYDROAMINATION; ELECTRONIC-STRUCTURE; CLUSTER; LIGAND; SERIES; UNITS; EU
subject category
Chemistry
authors
Zhao, RQ; Liu, X; Zhou, J; Xiao, HP; Zou, HH; Fu, LS; Tang, QL; Tan, XF
our authors
Lianshe Fu
Assistant Researcheracknowledgements
This work was supported by the NNSF of china (No. 21163022), the NSF of Chongqing municipality (No. cstc2014jcyjA50002), and the Key Project of Chinese Ministry of Education (No. 212132) and Program for Excellent Talents in Chongqing Higher Education Institutions. The authors are also grateful to the Innovative Training Program of University Students (201410637004), graduate innovative research projects of Chongqing municipality (CYS14137) and Chongqing Normal University for financial support (14CSLJ02, 13XLZ07).