NDLI: Crystal structure of solvate [Cd$_{2}$L$_{2}$Cl$_{4}$]·CH$_{2}$Cl$_{2}$ (L = pyrazolylquinoline, the derivative of monoterpenoid (+)-3-carene) and photoluminescence of chiral complex CdLCl$

Content Provider	Springer Nature Link
Author	Lariov, S. V. Savel’eva, Z. A. Klevtsova, R. F. Glinskaya, L. A. Uskov, E. M. Rakhmava, M. I. Popov, S. A. Tkachev, A. V.
Copyright Year	2011
Abstract	Using the single crystal X-ray diffraction data (150 K, Bruker X8 Apex CCD autodiffractometer, MoK α radiation), the crystal structure of the [Cd$_{2}$L$_{2}$Cl$_{4}$]·CH$_{2}$Cl$_{2}$ (L = pyrazolylquinoline, the derivative of monoterpenoid (+)-3-carene) compound is determined. Crystals are monoclinic, unit cell parameters are: a = 10.7005(4) Å, b = 16.8491(4) Å, c = 11.9658(4) Å, β = 93.308(1)°, P2$_{1}$ space group. The structure is formed from discrete acentric molecules of a binuclear [Cd$_{2}$L$_{2}$Cl$_{4}$] complex and uncoordinated CH$_{2}$Cl$_{2}$ molecules. The Cd$^{2+}$ ions coordinate N atoms of bidentate chelating ligands L, which leads to the closure of two five-membered chelate CdN$_{3}$C rings. The coordination sphere of Cd atoms also includes three Cl atoms (two bridging and one terminal), consequently, two CdCl$_{3}$N$_{2}$ coordination sites and a Cd$_{2}$Cl$_{2}$ metal ring are formed. The Cl$_{3}$N$_{2}$ polyhedra have the form of distorted tetragonal pyramids. The CH$_{2}$Cl$_{2}$ molecules located in the channels formed by the complexes are linked with them by weak H-bonds. The excitation spectra of L and the CdLCl$_{2}$ compound contain bands with λ$_{max}$ of 352 nm and 360 nm respectively. At 300 K and λ$_{excit}$ 350 nm, in the photoluminescence spectrum of L a rather intense broad split band with λ$_{max}$ 372 nm and 386 nm is observed. The photoluminescence spectrum of the CdLCl$_{2}$ compound contains a broad band with λ$_{max}$ 418 nm. The photoluminescence intensity of this compound is significantly lower than that of L.
Starting Page	531
Ending Page	537
Page Count	7
File Format	PDF
ISSN	00224766
Journal	Journal of Structural Chemistry
Volume Number	52
Issue Number	3
e-ISSN	15738779
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2011-07-29
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	complex solvate cadmium(II) structure chirality photoluminescence Atomic/Molecular Structure and Spectra Atomic, Molecular, Optical and Plasma Physics Solid State Physics Physical Chemistry Inorganic Chemistry
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Physical and Theoretical Chemistry Inorganic Chemistry

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