Nguyen Thi Thanh Chi


The interaction of the dimeric complex [Pt(µ-Cl)(Saf)]2 (1) (Saf: deprotonated safrole) with the salt iPr2-bimy·HBr in the presence of Ag2O in acetone solvent was studied. The obtained products were mixed complexes of [PtCl(Saf)(iPr2-bimy)] (2) and [PtBr(Saf)(iPr2-bimy)] (3) with different molar ratio (PI, PII, PIII)  depended on the used molar ratio of 1:salt:Ag2O. In the case of this ratio being 1:2:1.1, the mixture PI with 75% for the complex 2 was obtained. When concentration of the salt was increased, the product was PIIwith the molar ratio of 2 : 3 of 1 : 3. However, when both the salt and Ag2O were increased at the same time, 2 and 3 in PIII had equal molar proportions. The two main factors affecting the 2 : 3 molar ratio are the different solubility of AgCl and AgBr and the different coordinating ability of Cl- and Br- ligands. The structure of 2 and 3 was determined by 1H NMR spectra and single crystal X-ray diffraction. The results reveal that Saf in 2 and 3 coordinates with Pt(II) via C=Colefinic and C5 of benzene ring. Meanwhile, iPr2-bimy coordinates with Pt(II) through CNCN and is in trans-position compared with the C=Colefinic bond.


Pt(II) complex, safrole, 1,3-diisopropylbenzimidazol-2-ylidene, XRD, 1H NMR spectra.

Full Text:



Zhao, Q., Meng, G., Nolan, S. P., & Szostak, M. - N-Heterocyclic Carbene Complexes in C–H Activation Reactions, Chem. Rev. 120 (4) (2020) 1981-2048.

Harlepp, S., Chardon, E., Bouché, M., Dahm, G., Maaloum, M., & Bellemin-Laponnaz, S. - N-Heterocyclic Carbene-Platinum Complexes Featuring an Anthracenyl Moiety: Anti-Cancer Activity and DNA Interaction, International journal of molecular sciences. 20 (17) (2019) 4198.

Bernhammer, J. C., & Huynh, H. V. - Platinum (II) complexes with thioether-functionalized benzimidazolin-2-ylidene ligands: Synthesis, structural characterization, and application in hydroelementation reactions, Organometallics. 33 (1) (2014) 172-180.

Han Vinh Huynh - The Organometallic Chemistry of N-heterocyclic Carbenes, Wiley: Hoboken, NJ, 2017.

Markó, I. E., Stérin, S., Buisine, O., Berthon, G., Michaud, G., Tinant, B., & Declercq, J. P. - Highly active and selective platinum (0)‐carbene complexes efficient, catalytic hydrosilylation of functionalised olefins, Advanced Synthesis & Catalysis. 346 (12) (2004) 1429-1434.

De Bo, G., Berthon-Gelloz, G., Tinant, B., & Markó, I. E. - Hydrosilylation of alkynes mediated by N-heterocyclic carbene platinum(0) complexes, Organometallics, 25 (8) (2006) 1881-1890.

Berthon-Gelloz, Guillaume, et al. - Synthetic and structural studies of NHC–Pt(dvtms) complexes and their application as alkene hydrosilylation catalysts (NHC= N-heterocyclic carbene, dvtms= divinyltetramethylsiloxane), J. Org. Chem., 690 (24-25) (2005) 6156-6168.

Żak, P., Bołt, M., Kubicki, M., & Pietraszuk, C. - Highly selective hydrosilylation of olefins and acetylenes by platinum (0) complexes bearing bulky N-heterocyclic carbene ligands, Dalton Transactions. 47 (6) (2018) 1903-1910.

Huynh, H. V., Pham, V. T., & Chi, N. T. T. - Cyclometallated Platinum (II) Complexes with a Phenylpropene‐Derived π/σ‐Chelator and N‐Heterocyclic Carbenes, European Journal of Inorganic Chemistry. 2017 (48) (2017). 5650-5655.

Thong, P. V., Thang, N. M., & Chi, N. T. T. - Study on the interaction between [Pt(μ‐Cl)(isopropyl eugenoxyacetate‐1H)]2 and 1, 3‐diisopropylbenzimidazolium bromide. Vietnam Journal of Chemistry. 57 (2) (2019) 218-224.

Trang, H. K., Van, L. T., Trang, D. N. D., Mai, T. T. C., & Chi, N. T. T. - Synthesis and structure of three platinacyclic complexes bearing 1,3-diisopropylbenzimidazol-2-ylidene and natural arylolefin, Hội nghị Hóa học toàn quốc lần thứ 8, Vietnam Journal Chemistry. 57 (E1,2) (2019) 514-518.

Da, T. T., Kim, Y. M., Chi, N. T. T., Chien, L. X., Minh, N. V., & Dinh, N. H. - Formation of Metallacyclic Complexes by Activation of an Aryl C− H Bond in a Platinum− Safrole Analogue of Zeiseʼs Salt, Organometallics. 27 (14) (2008) 3611-3613.

Van Thong, P., Hien, N., Ha, N. S., & Chi, N. T. T. - Synthesis and structure of some azolium salts, Vietnam Journal of Chemistry. 55 (2) (2017) 248.

Groom, C. R., Bruno, I. J., Lightfoot, M. P., & Ward, S. C. - The Cambridge structural database. Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials, 72 (2) (2016) 171-179.

DOI: Display counter: Abstract : 41 views. PDF : 27 views.


  • There are currently no refbacks.

budidaya tani

Index: Google Scholar; Crossref; VCGate; Asean Citation Index

Published by Vietnam Academy of Science and Technology