ISSN 10703284, Russian Journal of Coordination Chemistry, 2015, Vol. 41, No. 5, pp. 312–315. © Pleiades Publishing, Ltd., 2015.
The flourishing realm of crystal engineering has pro
vided a sound junction between aesthetics of crystalline
architectures and their potential functions [1–4]. Thus,
much effort has been devoted to controllable formation
of desired 0–3D polymers with the concept of rational
design and crystal engineering [5–7]. In some ways,
the structures of coordination compounds are greatly
affected by certain weak interactions, such as hydro
gen bonding and stacking interactions [8, 9].
Chelating bipyridyllike ligands, such as 1,10
phenanthroline (Phen) and 2,2
bipyridine, are im
portant in maintaining the onedimensionality of the
coordination polymers and may provide potential su
pramolecular recognition sites [10–13]. However, its de
is lack of research. It has two additional coordination
sites when compared to Phen organic ligand. The re
markable feature for IP is not only a hydrogenbond ac
ceptor but also an excellent hydrogenbond donor based
on deprotonated –NHgroup. In this work, we reported
a new complex [Cd
L = terephthalic acid) that was obtained by rigid
dicarboxylate and IP coligand. Complex I shows a
dimeric motif that is connected by one L linker, in
which can be further linked into 2D network via the
three different hydrogen bonding interactions. In ad
dition, the luminescent behavior of compound I was
The article is published in the original.
Materials and method.
All reagents were purchased
from commercial sources and used as received. IR spec
tra were recorded with a PerkinElmer Spectrum One
spectrometer in the region 4000–400 cm
pellets. Thermogravimetric analysis (TGA) was car
ried out with a Metter–Toledo TA 50 in dry dinitro
gen (60 mL min
) at a heating rate of 5
ray powder diffraction (XRPD) data were recorded on
a Rigaku RU200 diffractometer at 60 kV, 300 mA for
) with a scan speed of
C/min and a step size of 0.013
nescence analyses were performed on a PerkinElmer
LS55 luminescence spectrometer.
Synthesis of complex I.
A mixture of Cd(OAc)
O (0.1 mmol), H
L (0.1 mmol), IP (0.2 mmol),
OH (1 mL) and deionised water (10 mL) was
stirred for 30 min in air. The pH of the resulting solu
tion was adjusted to 7 using dilute NaOH (1 mol/L)
and kept at 140
C (oven) for 72 h, and then cooled
down to 25
C. The resulting crystals formed were fil
tered off, washed with water and dried in air.
3129 v.s, 1685 v.s, 1561 v.s, 1377 v.s,
1290 m, 1077 m, 710 v.s, 513 v.s.
Single crystal Xray diffrac
tion analysis of complex
was carried out on a Bruker
SMART APEX II CCD diffractometer equipped with
anal. calcd., %: C, 52.96; H, 3.40; N, 14.53.
Found, %: C, 52.77; H, 3.27; N, 14.60.
A New Supramolecular Cd(II) Complex with Unusual SolidState
Properties Constructed from Rigid Coligand
F. M. Wang
and X. R. Wu
Department of Chemistry and Chemical Engineering, Shaanxi Xueqian Normal University, Xian 710100, Shannxi P.R. China
College of Chemistry & Life Science, Weinan Normal University, Weinan, Shannxi, P.R. China
School of Pharmacy, Guangdong Medical College, Dongguan, 523808 P.R. China
Received Octoder 10, 2014
A new complex with chemical formulae [Cd
L = tereph
thalic acid, IP = 1
imidazo[4,5f][1,10]phenanthroline) has been synthesized and structurally char
acterized by singlecrystal Xray diffraction analysis (CIF file CCDC no. 1004954). The structural
determination revealed that
has a dimeric motif, which can be further linked into 2D network via the
three different hydrogen bonding interactions. In addition, the luminescent behavior of compound