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ScienceAsia 49S (2023):ID 99-105 |doi: 10.2306/scienceasia1513-1874.2023.s011

Synthesis and crystal structures of silver(I) halide complexes containing 1,3-diisopropyl-2-thiourea and triphenylphosphane ligands

Yupa Wattanakanjanaa,*, Apiwat Wisedsina, Siriluk Kanjanakhirithamronga, Arunpatcha Nimthong-Roldanb

ABSTRACT:     The reaction of silver(I) halide with triphenylphosphine (PPh3 ) and 1,3-diisopropyl-2-thiourea (DSPTU) gave mononuclear complexes of formula [AgX(DSPTU)(PPh3 )], [where X = Br (1) and Cl (2)]. Complexes (1) and (2) were characterized by infrared (IR) spectroscopy and their structures determined by single crystal X-ray diffraction. The two complexes are isostructural and isomorphous, with the Ag(I) ion exhibiting a distorted trigonal planar coordination with one P atom from the PPh3 ligand, one terminal S atom from the DSPTU ligand, and a halide ion. Intramolecular N?H???X hydrogen bonds are observed in both complexes (graph set motif S(6)). In the crystal, the amine and halide group are linked into a 1D zigzag chain along the b axis by N?H???X hydrogen bonds.

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a Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110 Thailand
b Pre-Development Sciences, 211, 2nd Ave, Waltham, Massachusetts 02451 USA

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

Received 18 Jan 2023, Accepted 19 Dec 2023