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Endang Widjajanti Laksono
Nofianti Vivi Astuti
Isti Yunita
Kristian Handoyo Sugiyarto


The complex containing Co(II), bipyridine (bipy), and trifluoroacetate (TFA) was prepared and characterized. The metal content, conductance, and TGA-DTG analysis estimate the formula of [Co(bipy)3](CF3COO)2.5,5H2O. The magnetic property shows the moment of 4.2-5.3 BM which should correspond to the three unpaired electrons with the typically strong orbital contribution in cobalt(II). The UV-VIS spectral profiles indicate the three possible spin-allowed transitions of the corresponding quartet states. The characteristic vibration modes of bipy and TFA confirm the complex formula. The SEM photographs support the crystalline particle size, and the corresponding EDX signifies the existence of all elemental contents. The powder XRD profile has been refined according to the Le Bail method of the Rietica program, and the result suggests being a structurally monoclinic system of space group C2/c. This complex exhibits a weak inhibition against S. aureus and E. coli bacterial activity.


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Endang Widjajanti Laksono, Department of Chemistry Education, Universitas Negeri Yogyakarta, Yogyakarta 55281, INDONESIA.

Department of Chemistry Education

Nofianti Vivi Astuti, Department of Chemistry Education, Universitas Negeri Yogyakarta, Yogyakarta 55281, INDONESIA.

Department of Chemistry Education

Isti Yunita, Department of Chemistry Education, Universitas Negeri Yogyakarta, Yogyakarta 55281, INDONESIA.

Department of Chemistry Education


Abdelhak, J., Cherni, S. N., & Zid, M. F. (2014). Synthesis, characterization, and crystal structure of new cobalt(III) complex: [Tris(1,10-phenanthroline-κ2N,N’) cobalt(III)] trinitrate monohydrate [Co(C12H8N2)3](NO3)3·H2O, Mediterranean Journal of Chemistry, 3 (1), 738–745. DOI: 10.13171/mjc.2014.26.03.22.

Abebe, A., Kendie, M., & Tigineh, G.T. (2022). Mono-and Binuclear Cobalt(II) Mixed Ligand Complexes of 2,2’-Bipyridine and Ethylenediamine: Synthesis, Characterization and Biological Application. Biointerface Research in Applied Chemistry, 12, 1962-1973.

Ayipo, Y. O., Osunniran, W. A., Badeggi, U. M., Saheed, I. O., Jimoh. A. A., Babamale, H. F., & Olaide, E. O., (2021). Synthesis, characterization and antibacterial study of Co(II) and Cu(II) complexes of mixed ligands of piperaquine and diclofenac. JOTCSA, Journal of the Turkish Chemical Society Chemistry, 8(2):633–50. DOI: 10.18596/jotcsa. 898523S

Bain, G. A., & Berry, J. F. (2008). Diamagnetic Corrections and Pascal’s Constants. Journal of Chemical Education, 85(4): 532-536. DOI:10.1021/ed085p532.

Balouiri, M., Sadiki, M., & Ibnsouda, S. K. (2016). Methods for in vitro evaluating antimicrobial activity: A review. Journal of Pharmaceutical Analysis, 6(2), 71–79.

Benabdallah, J., Setifi, Z., Setifi, F., Boughzala, H., & Titi, A. (2019). Crystal structure of tris(2,2′-bipyridine)cobalt(II) bis(1,1,3,3-tetracyano-2-ethoxypropenide). Acta Crystallographica Section E: Crystallographic Communications, 75(2), 142–145. doi:10.1107/s2056989018018261

Beyene, B. B., & Wassie, G. A. (2020). Antibacterial activity of Cu(II) and Co(II) porphyrins: role of ligand modification. BMC Chemistry 14, 51:1-8

Chaudhary, R. G., Juneja, H. D., Pagadala, R., Gandhare, N. V. & Gharpure, M. P. (2015). Synthesis, characterization, and thermal degradation behavior of some coordination polymers by using TG–DTG and DTA techniques. Journal of Saudi Chemical Society, 19(4), 442–453. doi:10.1016/j.jscs.2014.06.002]]

Chen, H., Xu, X.-Y., Gao, J., Yang, X.J., Lu, L. D., & Wang, X. (2006). Study on crystal structure of [Ni(phen)3](ClO4)2. Acta Physico-Chimica Sinica, 22 (7), 856–859. DOI:10.3866/PKU.WHXB20060717

Czakis-Sulikowska, D., & Czylkowska, A. (2003).Thermal and other properties of complexes of Mn(II), Co(II) and Ni(II) with 2,2'-bipyridine and trichloroacetates. Journal of Thermal Analysis and Calorimetry, 74, 349–360 (2003).

Dalal, M. A. (2017). Textbook of Inorganic Chemistry-Volume 1 (First Edition). CHAPTER 9. Magnetic Properties of Transition Metal Complexes. India: Dalal Institute, pp.342-386.

Davis, W. W, Stout, T. R.(1971). Disc plate method of microbiological antibiotic assay. I. Factors influencing variability and error. Applied Microbiology, 22(4), 659-65. doi: 10.1128/am.22.4.659-665.1971. PMID: 5002143; PMCID: PMC376382.

Hassoon, A. A., Harrison, R. G., Nawar, N., Smith, S. J., & Mostafa, M. M. (2020). Synthesis, single crystal X-ray, spectroscopic characterization and biological activities of Mn2+, Co2+, Ni2+ and Fe3+ complexes. Journal of Molecular Structure, 1203(3), 127240-127264. doi:10.1016/j.molstruc.2019.12724.

Kani, I., Atlier, Ö., & Güven, K. (2016). Mn(II) complexes with bipyridine, phenanthroline and benzoic acid:Biological and catalase-like activity. Journal of Chemical Sciences, 128(4), 523–536. DOI 10.1007/s12039-016-1050-z.

Kumar, S. P., Suresh, R., Giribabu, K., Manigandan, R., Munusamy, S., Muthamizh, S., & Narayanan, V. (2014). Microwave synthesis of Tris-(1,10-phenanthroline)Manganese(II) complex and its electrochemical sensing property of catechol. International Journal of ChemTech Research, 6 (6), 3280-3283.

Kusumawardani, C., Kainastiti, F., and Sugiyarto, K. H. (2018). Structural Analysis of Powder Complex of Cu(bipy)3(CF3SO3)2 (H2O)x (x = 0.5, 1). Chiang Mai Journal of Science, 45(4), 1944-1952.

Kusumawardani, C., Permanasari, L., Fatonah, S. D., & Sugiyarto K. H. (2017). Structural Analysis of Powder Complex of Tris(1,10-phenanthroline)copper(II) Trifluoromethane Sulfonate Dihydrate, Oriental Journal of Chemistry, 33(6), 2841-2847.

Lancashire, R. J. (2021). LibreTexts Chemistry: Selection Rules for Electronic Spectra of Transition Metal Complexes, Last updated, Jan 30, 2023.

Lancashire, R. J. LibreTextsTM (2020). Magnetic Moments of Transition Metals. [accessed 15 December 2021].

Lever, A. B. P., & Mantovani, E. (2011). Isotopic Studies of the Metal–Ligand Bond. Part III. The Far Infrared Spectra of Some Tetragonal Diamine Complexes of Cobalt(II) and Nickel(II): Studies of the Metal–Nitrogen Bond, as a Function of Metal Ion and of Spin State, Canadian Journal of Chemistry, 51(10):1567-1581. DOI:10.1139/v73-237

LibreTextsTM (2020). Magnetism. [accessed 15 December 2021]

Mihsen, H. H., & Shareef, N. K. (2018). Synthesis, Characterization of Mixed- ligand Ccomplexes Containing 2,2-Bipyridine and 3-aminopropyltriethoxysilane. Journal of Physics: Conference Series, 1032, 012066. doi:10.1088/1742-6596/1032/1/012066.

Mir, M.A., & Ashraf, M. W. (2021, TG, DTA Pyrolytic Analysis of Cobalt, Nickel, Copper, Zinc, and 5,8-Dihydroxy-1,4-Naphthoquinone Chelate Complexes, Hindawi Journal of Chemistry, 1-13.

Osowole, A. A., Kolawole, G. A., & Fagade, O. E. (2008). Synthesis, characterization and biological studies on unsymmetrical Schiff-base complexes of nickel(II), copper(II) and zinc(II) and adducts with 2,2′-dipyridine and 1,10-phenanthroline, Journal of Coordination Chemistry, 61 (7), 1046–1055.

Paswan, S., Anjum, A., Singh, A. P., & Dubey, R. K. (2019). Synthesis and Spectroscopic Characterization of Lanthanide Complexes Derived from 9,10-Phenanthrenequinone And Schiff Base Ligands Containing N, O Donor Atoms. Indian Journal of Chemistry, 58A(4), 446-453.

Pathshala (2021). Inorganic Chemistry-II: Metal-Ligand Bonding, Electronic Spectra and Magnetic Properties of Transition Metal Complexes. [accessed 15 December 2021]

Rastina, Sudarwanto, M., & Wientarsih, I. (2015). Antibacterial Activity of Ethanol Extract of Curry Leaf (Murraya koenigii) on Staphylococcus aureus, Escherichia coli, and Pseudomonas Sp. Jurnal Kedokteran Hewan (Indonesian Journal of Veterinary Sciences), 9(2), 185-188.

Shad, H. A., Thebo, K. H., Ibupoto, Z. H., Malik, M. A., O’Brien, P., & Raftery, J. (2011). Synthesis, characterization, and crystal structure of a copper(II) complex of 1,10-phenanthroline and succinate, Journal of Coordination Chemistry, 64(13), 2353-2360. DOI 10.1080/00958972.2011.595789.

Singh, B. K., Mishra, P, Prakash, A., & Bhojak,N. (2017). Spectroscopic, electrochemical and biological studies of the metal complexes of the Schiff base derived from pyrrole-2-carbaldehyde and ethylenediamine, Arabic Journal of Chemistry, 10(2), S472-S483.

Skyrianou, K. C., Perdih, F., Turel, I., Kessissoglou, D. P., & Psomas, G. (2010). Nickel–quinolones interaction. Part 2 – Interaction of nickel(II) with the antibacterial drug oxolinic acid, Journal of Inorganic Biochemistry, 104 (2), 161–170.

Sondavid, N., Shweta, B., Bryan, W., Joung, C., Naresh, T., & Jun, K. H. (2020). Cobalt(II) Benzazole Derivative Complexes: Synthesis, Characterization, Antibacterial and Synergistic Activity. ChemistrySelect, 5, 3471-3476. DOI:10.1002/slct.202000222.

Sugiyarto, K. H., Kusumawardani, C., & Wulandari, K. E. (2018). Synthesis and Structural Analysis of Powder Complex of Tris(bipyridine)cobalt(II) trifluoromethanesulfonate Octahydrate, Indonesian Journal of Chemistry, 18 (4), 696 - 701. DOI: 10.22146/ijc.26833

Sugiyarto, K. H., Kusumawardani, C., Sutrisno , H., & Wibowo, M. W. A. (2018). Structural Analysis of Powdered Manganese(II) of 1,10-Phenanthroline (phen) as Ligand and Trifluoroacetate (TFA) as Counter Anion. Oriental Journal of Chemistry, 34(2), 735–742. DOI:10.13005/ojc/340216

Sugiyarto, K. H., Louise, I. S. Y., & Wilujeng, S. S. (2020). Preparation and Powder XRD Analysis of Tris(2,2’-bipyridine)nickel(II) Trifluoroacetate. Indonesian Journal of Chemistry, 20(4), 833 - 841. DOI: 10.22146/ijc.46483

Sugiyarto, K. H., Marini, D. W., Sutrisno, H., Purwaningsih, D., & Kusumawardani, C. (2023). Synthesis of Powdered [Mn(bipy)3](CF3SO3)2·5.5H2O: The Physical Properties and Antibacterial Activity. Indonesian Journal of Chemistry, 23 (1), 242 – 250. DOI: 10.22146/ijc.77565.

Sugiyarto, K. H., Saputra, H. W., Permanasari, L., & Kusumawardani, C. (2017). Structural analysis of powder complex of [Mn(phen)3](CF3SO3)2.6.5H2O, AIP Conference Proceedings 1847, 040006-1-040006-7. DOI: 10.1063/1.4983902.

Sutrisno, H., Kusumawardani, C., Rananggana, R. Y., & Sugiyarto, K. H. (2018). Structural Analysis of Powder Tris(phenanthroline)nickel(II) Trifluoroacetate, Chiang Mai Journal of Science, 45(7), 2768-2778.

Suzuki, H., Takiguchi, T., & Kawasaki, Y. (1978). Synthesis and spectroscopy of acetato and dithiocarbamate complexes of bis(cyclopentadienyl) zirconium(IV), Bulletine of the Chemical Society of Japan, 51 (6), 1764–1767.

Tosonian, S., Ruiz, C. J., Rios, A., Frias, E., & Eichler, J. F. (2013). Synthesis, characterization, and stability of iron (III) complex ions possessing phenanthroline-based ligands, Open Journal Inorganic Chemistry, 3 (1), 7–13. DOI:10.4236/ojic.2013.31002

Uddin, S., Hossain, Md. S., Latif, Md. A., Karim, Md. R., Mohapatra, R. K., & Zahan, Md. K-E. (2019). Antimicrobial Activity of Mn Complexes Incorporating Schiff Bases: A Short Review. American Journal of Heterocyclic Chemistry, 5(2), 27-36. DOI: 10.11648/j.ajhc.20190502.12.

Yao, J. C., Ma, L. F., & Yao, F. J. (2005). Crystal structure of tris(2,2′-bipyridine)cobalt(II)diperchlorate, [Co(C10H8N2)3][ClO4]2. Zeitschrift Für Kristallographie, New Crystal Structures, 220(3): 483-484. doi:10.1524/ncrs.2005.220.3.483.

Zhou, Y., Li, X., Xu, Y., Cao, R., & Hong, M. (2003). Tris(2,2′-bipyridine)nickel(II) perchlorate, Acta Crystallography, Section E: Structure Report Online, 59 (5), m300–m302.