Proceedings of The 5th Annual International Seminar on Trends in Science and Science Education, AISTSSE 2018, 18-19 October 2018, Medan, Indonesia

Research Article

Study of Thermodynamic and Structure of Cu(II) 1,2,4 H-Triazole Complex using The ab Initio Method

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  • @INPROCEEDINGS{10.4108/eai.18-10-2018.2287369,
        author={Asep Wahyu Nugraha and Zainuddin Muchtar and Junifa Laila Sihombing and Iis Siti Jahro},
        title={Study of Thermodynamic and Structure of Cu(II) 1,2,4 H-Triazole Complex using The ab Initio Method},
        proceedings={Proceedings of The 5th Annual International Seminar on Trends in Science and Science Education, AISTSSE 2018, 18-19 October 2018, Medan, Indonesia},
        publisher={EAI},
        proceedings_a={AISTSSE},
        year={2019},
        month={10},
        keywords={Cu(II) 1 2 4 H-triazole the computational study the structure data and difference of energy},
        doi={10.4108/eai.18-10-2018.2287369}
    }
    
  • Asep Wahyu Nugraha
    Zainuddin Muchtar
    Junifa Laila Sihombing
    Iis Siti Jahro
    Year: 2019
    Study of Thermodynamic and Structure of Cu(II) 1,2,4 H-Triazole Complex using The ab Initio Method
    AISTSSE
    EAI
    DOI: 10.4108/eai.18-10-2018.2287369
Asep Wahyu Nugraha1,*, Zainuddin Muchtar1, Junifa Laila Sihombing1, Iis Siti Jahro2
  • 1: Physical Chemistry Division Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan
  • 2: Inorganic Chemistry Division Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan
*Contact email: aw.nugraha@unimed.ac.id

Abstract

The complex of Cu(II) 1,2,4 H-triazole is one complex compound having a polymeric structure. The objective of this study determines the difference in energy formation and structure data of Cu(II) 1,2,4 H-triazole complex. The computational study used the Hartree-Fock method and the basis set 3-21G and 6-31G(d). The complex was studied of [Cu2(Htrz)4(trz)2]2+ and [Cu2(Htrz)6]4+. The result of a computational study with function/ basis set UHF/ 6-31G(d) shows the distance between Cu(II) ions for complexes with deprotonated ligands of 3,433Ǻ, while complexes with undeprotonated ligands are 3,551Ǻ. Bond length of Cu-N in the complex with deprotonated ligands are 1.953Ǻ - 2.167Ǻ, whereas for the complex with undeprotonated ligands are 2,063Ǻ - 2,123Ǻ. The difference of energy from a computational study using the function/ basis set UHF/ 6-31G(d) for the [Cu2(Htrz)4(trz)2]2+ complex is -3693.43 KJ/ Mol and the [Cu2(Htrz)6]4+ complex is -1666.01 KJ/ Mol.