abstract
One novel three-dimensional (3-D) copper(I)-thioarsenate(III) [Ni(en)(3)]Cu4As4S9 (1, en = ethylenediamine) has been solvothermally prepared with the utilization of the in situ formation of [Ni(en)(3)](2+) complex as structure-directing agent (SDA). 1 contains cubane-like [Cu8S12](16-) clusters and rare tetrameric [As4S9](6-) units, which are interconnected to generate the first example of a 3-D anionic framework [Cu4As4S9](n)(2n-), topologically identical to pyrite, and having large channels filled by [Ni(en)(3)](2+) complex cations. 1 is a potential wide-band-gap semiconductor with an energy gap of 1.91 eV that exhibits selectively photocatalytic degradation of methylene blue under visible-light irradiation. The density functional theory calculation, photocurrent response, and magnetic properties of 1 were also investigated.
keywords
TRANSITION-METAL-COMPLEXES; SOLVOTHERMAL SYNTHESIS; 2ND-HARMONIC GENERATION; ANTIMONY-SULFIDE; CHAINS; CLUSTERS; SELENOARSENATES; SEMICONDUCTORS; CONDENSATION; UNIQUE
subject category
Chemistry, Inorganic & Nuclear
authors
Liu, X; Zhou, J; Huang, L; Xiao, HP; Amarante, TR; Paz, FAA; Xiang, B; Fu, LS
our authors
Filipe Alexandre Almeida Paz
Principal Researcher
Lianshe Fu
Assistant Researcher
Tatiana Ribau Amarante
Junior Researcheracknowledgements
This work was supported by the NNSF of China (No. 21671029), the NSF of Chongqing (No. cstc2018jcyjAX0157), Program for leading talents of scientific and technological innovation in Chongqing (No. CSTCCXLJRC-201707), innovation and entrepreneurship team of inorganic optoelectronic functional materials for Chongqing Yingcai (No. CQYC2020030920), and the Innovation Program for Chongqing's Overseas Returnees (No. cx2019037). Part of this work was developed within the scope of the project CICECO-Aveiro Institute of Materials, UIDB/50011/2020 and UIDP/50011/2020, financed by national funds through the FCT/MEC and when appropriate co-financed by FEDER under the PT2020 Partnership Agreement. The position held by T.R.A. was funded by national funds (OE), through FCT, I.P., in the scope of the framework contract foreseen in the numbers 4, 5, and 6 of article 23 of the Decree-Law 57/2016 of 29 August, changed by Law 57/2017 of 19 July.