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Volume 46S Number 1

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Research articles

ScienceAsia 46S (2020): 74-78 |doi: 10.2306/scienceasia1513-1874.2020.S010

Crystal structure of metal (I) bromide complexes containing 1-(4-nitrophenyl)thiourea and triphenylphosphine ligands

Yupa Wattanakanjanaa,*, Walailak Puetpaiboona, Paramee Sripaa, Arunpatcha Nimthong-Roldanb

ABSTRACT:     Two metal(I) complexes containing triphenylphosphine (PPh3) and 1-(4-nitrophenyl)thiourea (NPTU) ligands were prepared, namely, [MBr(NPTU)(PPh3)2] (M = Cu (1) and Ag (2)). Both compounds (1) and (2) exhibit a distorted tetrahedral metal coordination environment with two P atoms from two PPh3 ligands, one terminal S atom from the NPTU ligand and a bromide ion. An intramolecular N−H · · · Br hydrogen bond is observed (graph set motif S(6)). Amine and bromide units from neighbouring molecules are linked via bifurcated (N−H)2 · · · Br hydrogen bonds forming 1D zigzag chains along [001] with an R2/1(6) graph set motif. Neighbouring chains are connected through C−H · · · O hydrogen bonds leading to the formation of a three-dimensional network.

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a Department of Chemistry, Faculty of Science, Prince of Songkla University, Songkhla 90112 Thailand
b Pre-Development Sciences, Waltham, Massachusetts 02451 USA

* Corresponding author, E-mail: yupa.t@psu.ac.th

Received 16 Oct 2019, Accepted 18 Feb 2020