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 SM ISO690:2012STRĂISTARI, Tatiana, TURTA, Constantin, REGLIER, Marius, SHOVA, Sergiu. Synthesis of zinc and ruthenium dimers with (4 - (p-metoxifenil) -thiosemicarbazone) - 2, 3-butane ligand. In: Physical Methods in Coordination and Supramolecular Chemistry, 8-9 octombrie 2015, Chişinău. Chisinau, Republic of Moldova: 2015, XVIII, p. 143. |
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| Physical Methods in Coordination and Supramolecular Chemistry XVIII, 2015 |
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Conferința ""Physical Methods in Coordination and Supramolecular Chemistry"" Chişinău, Moldova, 8-9 octombrie 2015 | ||||||
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| Pag. 143-143 | ||||||
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The compounds [Zn2L2](DMF)3 (1) and [Ru2(LH)2Cl2](DMF)x (2) have been obtained from the reaction mixtures Zn(CH3COO)2 4H2O – H2L (methanol - DMF) and Ru(DMSO)2Cl2 4H2O – H2L (methanol - DMF) where H2L (4 - (p-metoxifenil)-thiosemicarbazone) - 2, 3-butane).Figure 1. View of the molecule of [Zn2L2] (1) Figure 2. View of the molecule of [Ru2(LH)2Cl2] (2) The experimental data of X -ray diffraction pattern for zinc complex is a dimer with 3 molecules of DMF, each zinc atom has a distorted square pyramidal geometry. The bottom positions of the pyramid are occupied by sulfur and nitrogen atoms of the bis (4 - (p-methoxyphenyl)-thiosemicarbazon) -2,4-butane) ligand with bond lengths: Zn(1) – S(1) 2.3175(5) Å, Zn(1) – S(2) 2.4245(6) Å, Zn(1) – N(3) 2.106(2) Å, Zn(1) – N(4) 2.097(2) Å, Zn(2) – S(3) 2.4505(6) Å, Zn(2) – S(4) 2.3127(6) Å, Zn(2) – N(9) 2.095(2) Å, Zn(2) – N(10) 2.092(2) Å. The positions of the top of the pyramids are occupied by sulfur atoms, which plays the role of a bridge between two zinc atoms: Zn(1) - S (3) 2.5132 (7) Å, Zn (2) - S (2) 2.4798 (7) Å. The ruthenium complex is a dimer, where each ruthenium atom has an octahedral geometry. The coordination in the equatorial plane are realized by sulfur and nitrogen atoms of the bis (4 - (p-methoxyphenyl)-thiosemicarbazon) -2,4-butane) ligand with bond lengths for the Ru(01) are Ru(01) – S(033) 2.311(4) Å, Ru(01) – S(108) 2.380(5) Å, Ru(01) – N(018) 1.98(2) Å, Ru(01) – N(74) 1.96(1) Å, and for Ru(02): Ru(02) – S(03) 2.277(5) Å, Ru(02) – S(008) 2.375(6) Å, Ru(02) – N(134) 2.04(2) Å, Ru(02) – N(030) 2.02() Å. In the axial plane for ruthenium complex one position is occupied by the chloride anion, and the other by a sulfur atom bridging between two atoms of ruthenium Ru(01) – S(03) 2.269(6) Å, Ru(01) – Cl(015) 2.408(6) Å, Ru(02) – S(033) 2.290(6) Å, Ru(02) – Cl(014) 2.402(6) Å. |
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