ISSN 1070-3284, Russian Journal of Coordination Chemistry, 2006, Vol. 32, No. 4, pp. 237–241. © Pleiades Publishing, Inc., 2006.
Original Russian Text © S.V. Vitushkina, V.A. Starodub, O.S. Pyshkin, 2006, published in Koordinatsionnaya Khimiya, 2006, Vol. 32, No. 4, pp. 247–251.
plexes evoke great interest of researchers because of
their unusual properties. For instance, they were used
for the preparation of heterovalent complexes, syn-
thetic metals, superconductors [1–3], and compounds
capable of forming magnetically ordered structures [4,
5]. In recent years, the Dmit-based mixed-ligand com-
plexes with unusual magnetic  and the third-order
nonlinear optical properties [7–9] have been studied.
The mixed-ligand Zn(II) complex with 2-oxo-1,3-
) and 1,10-phenanthroline
) exhibits an intense fluorescence at
539.5 nm upon excitation with a wavelength of 371 nm
at room temperature .
In this work, we describe the synthesis of a similar
crystal and molecular structures, electronic absorption,
IR, and ﬂuorescence spectra.
All reagents (Aldrich and Merck) were used without
additional puriﬁcation. The complex
was synthesized according to a described procedure
. The content of Zn was determined by trilonometry
using Eriochrome Black T as the indicator. The con-
tents of carbon and hydrogen were determined on a
Vario EL instrument. The nitrogen and sulfur contents
were determined by the Dumas and Scheniger methods,
IR spectra were recorded on a Specord 75IR spec-
trophotometer in the range from 400 to 4000 cm
(KBr pellets). Electronic absorption spectra were mea-
sured on an SF-46 spectrophotometer at 300–600 nm.
Fluorescence spectra were measured on a DFS-12
automated spectrometer detecting a signal in the pho-
ton counting mode using a FEU-106 photomultiplier.
An LGI-21 pulse nitrogen laser with a radiation wave-
length of 337 nm, a pulse duration of 10 ns, and an aver-
age output power of 3 mW was used to excite ﬂuores-
was synthesized by the reac-
tion of ligand substitution. For this purpose, a solution
(0.3 mmol, 0.283 g) in acetone
(25 ml) was carefully added to a solution of Phen
Synthesis and Crystal Structure
S. V. Vitushkina*, V. A. Starodub*, and O. S. Pyshkin**
* Kharkov State University, Kharkov, 310077 Ukraine
** Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine,
Kharkov, 261103 Ukraine
Received June 20, 2005
—The synthesis of a mixed-ligand complex 1,3-dithiole-2-thione-4,5-dithiolato-bis(1,10-phenanthro-
], is described. The crystals are monoclinic, space group
= 4. The coordination polyhedron of the Zn(II) atom is an
octahedron formed by two sulfur atoms of the Dmit ligand and four nitrogen atoms of the two Phen ligands.
The complex is studied by IR and UV spectroscopy.
500 1000 1500 2000
IR spectrum of complex