Chemistry Journal of Moldova. General, Industrial and Ecological Chemistry

15-23

Authors: Olena Litsis, Vladimir Ovchynnikov, Tatiana Sliva, Svitlana Shishkina, Vladimir Amirkhanov

New mononuclear six-coordinate lanthanide coordination compounds [Ln (HL)3Cl3] (HL = (2,2,2-trichloro-N-(dipiperidin-1-yl-phosphoryl)acetamideCCl3C(O)N(H)P(O)[N(CH2)5]2, carbacylamidophosphate (CAPh) type ligand) have been synthesized from non-aqueous solutions. The complexes have been characterized by elemental analysis, spectroscopic methods (FTIR, 1H- and 31P-NMR, UV-Vis). The structure of [Sm(HL)3Cl3] has been further confirmed by single crystal X-ray diffraction analysis.

30-35

Authors: Aliona Vitiu, Lilia Croitor, Anatolii Siminel, Eduard Coropceanu, Paulina Bourosh

A new two dimensional 2,2′-bipyridine-4,4′-dicarboxylate Zn(II) coordination polymer was obtained by hydrothermal synthesis and characterized by IR spectrum and single-crystal X-ray diffraction. The crystal lattice hosts the N,N-dimethylformamide and water solvent molecules. The new material reveals blue-orange luminescence upon excitation with ultraviolet light.

46-53

Authors: Viorina Gorinchoy, Vera Zubareva, Elena Melnic, Victor Kravtsov

The reaction between iron and nickel salts with ammonium salicylate results in the formation of a new trinuclear heterometallic complex [hexa-µ2-salicylato-µ3-oxo-(methanol)(dimethylformamide) aquadiiron(III) nickel(II)] methanol dimethylformamide. The synthesized [Fe2NiO(SalH)6(CH3OH)(DMF)(H2O)]•DMF•CH3OH complex crystallizes in the monoclinic space group C2/c. The IR and Mössbauer spectra and thermal properties were studied.

63-68

Authors: Alexandru Ciocarlan, Ion Dragalin, Aculina Aricu, Nina Ciocarlan, Cristina Stavarache, Mariana Deleanu

The present paper describes biochemical (fatty oil) composition of Silybummarianum (L.) Gaertn. of Moldovan origin. The oil content of the seeds was approximately 25%. Linoleic acid (C18:2), an essential polyunsaturated fatty acid, is the most abundant (48.88%), followed by monounsaturated oleic acid (C18:1, 31.94%) and saturated palmitic acid (C16:0, 7.61%). The RP-HPLC analysis of tocopherols composition, showed as main components α-tocopherol (23.45 mg/100g) and γ–tocopherol (5.60 mg/100g). Based on the obtained results, it was shown that the extracted oil from milk thistle seeds is rich in essential fatty acids (about 50%) and tocopherols (29.09 mg/100g) and it can be used in food preparation.

74-86

Authors: Farzaneh Mohamadpour, Malek Taher Maghsoodlou, Mojtaba Lashkari, Reza Heydari, Nourallah Hazeri

This method reported the use of tartaric acid as a green and highly efficient catalyst for the convenient synthesis of polysubstituted quinolines and xanthenes derivatives in excellent yields under solvent-free conditions. The main advantages of this one-pot procedure are the green and economic availability of the catalyst, simple experimental and work-up procedures.

95-102

Authors: Is Fatimah, Nurul Indriani

Green synthesis of silver nanoparticles (AgNPs) using Lantana camara yellow flower extract via microwave irradiation and ultrasound methods was conducted. The research was aimed at evaluating the effect of the synthesis method and also the time of treatment during synthesis on the particle size and antioxidant and antibacterial activities of the AgNPs. Analysis of the nanoparticles was performed using UV-Vis spectroscopy, transmission electron microscope (TEM), particle size analyzer, and Fourier transform infrared spectroscopy (FTIR). The present results support the advantages of plant extract and the green method for the production of nanoparticles for further potential applications.

111-116

Authors: Gheorghe Duca, Lilia Anghel, Raul Victor Erhan

In this work, Fourier transform infrared spectroscopy was used to highlight the structural differences between the human lactoferrin and human serum transferrin. The results clearly show the structural differences of human lactoferrin and human serum transferrin. The second derivative analysis of the FTIR spectra allows the direct identification of secondary structure components of the human lactoferrin and human serum transferrin.