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Hosseini S, Mardani Z, Moeini K, Carpenter-Warren C, Slawin AM, Woollins JD. A binuclear Cd(II) complex containing bridging pyrimidine-based ligands. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2020. [DOI: 10.1515/znb-2019-0193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In this work, a pyrimidine-based ligand, N′-(amino(pyrimidin-2-yl)methylene)pyrimidine-2-carbohydrazonamide hydrate (APPH · H2O), and its binuclear complex of cadmium, [Cd(μ-APPH)Br]2, 1, were prepared and identified by elemental analysis, FT-IR, 1H NMR spectroscopy as well as single-crystal X-ray diffraction. X-ray structure analysis of 1 revealed octahedrally coordinated cadmium centers with a CdN4Br2 environment containing two bridging APPH ligands; each APPH ligand acts as an N4-donor (N2-donor toward each cadmium atom) and forms two five-membered chelate rings that are approximately perpendicular to each other. In the network of 1, the N–H · · · Br hydrogen bonds form motifs such as
R
2
2
(
12
,
14
)
,
R
6
6
(
24
,
26
,
…
,
46
)
.
${\rm{R}}_{\rm{2}}^{\rm{2}}(12,{\rm{ }}14),{\rm{ R}}_{\rm{6}}^{\rm{6}}(24,{\rm{ }}26,{\rm{ }} \ldots ,{\rm{ }}46).$
The crystal network is further stabilized by π-π stacking interactions between pyrimidine rings. The optimized structures of the ligand and complex were investigated along with their charge distribution patterns by density functional theory and natural bond orbital analysis, respectively.
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Affiliation(s)
- Samireh Hosseini
- Inorganic Chemistry Department, Faculty of Chemistry , Urmia University , 57561-51818 Urmia , Islamic Republic of Iran
| | - Zahra Mardani
- Inorganic Chemistry Department, Faculty of Chemistry , Urmia University , 57561-51818 Urmia , Islamic Republic of Iran
| | - Keyvan Moeini
- Chemistry Department , Payame Noor University , 19395-4697 Tehran , Islamic Republic of Iran
| | - Cameron Carpenter-Warren
- EaStCHEM School of Chemistry , University of St Andrews , St Andrews , Fife KY16 9ST , United Kingdom
| | - Alexandra M.Z. Slawin
- EaStCHEM School of Chemistry , University of St Andrews , St Andrews , Fife KY16 9ST , United Kingdom
| | - J. Derek Woollins
- EaStCHEM School of Chemistry , University of St Andrews , St Andrews , Fife KY16 9ST , United Kingdom
- Khalifa University , P.O. Box 127788 , Abu Dhabi , United Arab Emirates
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Mardani Z, Kazemshoar-Duzduzani R, Moeini K, Darroudi M, Carpenter-Warren C, Slawin AM, Woollins JD. An ionic Cd/Hg mixed-metal complex with an aminoalcohol ligand. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2018. [DOI: 10.1515/znb-2018-0158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
A cadmium–mercury mixed-metal complex of cis-2-((2-((2-hydroxyethyl)amino)ethyl)amino)cyclohexan-1-ol (HEAC), [Cd(HEAC)2][HgI4] (1), was prepared and identified by elemental analysis, FT-IR, 1H NMR spectroscopy, and single-crystal X-ray diffraction. The X-ray analysis revealed an ionic structure for 1 in which the cadmium and mercury atoms have CdN4O2 and HgI4 environments, with distorted octahedral and tetrahedral geometries, respectively. The packing of the components in the crystal of 1 is supported by O–H···I hydrogen bonds, and these interactions lead to the formation of an
R
4
4
${\rm{R}}_4^4$
(22) motif.
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Affiliation(s)
- Zahra Mardani
- Inorganic Chemistry Department, Faculty of Chemistry , Urmia University , 57561-51818 Urmia , I.R. Iran
| | - Reza Kazemshoar-Duzduzani
- Inorganic Chemistry Department, Faculty of Chemistry , Urmia University , 57561-51818 Urmia , I.R. Iran
| | - Keyvan Moeini
- Chemistry Department , Payame Noor University , 19395-4697 Tehran , I.R. Iran
| | - Majid Darroudi
- Nuclear Medicine Research Center , Mashhad University of Medical Sciences , Mashhad , I.R. Iran
| | | | | | - J. Derek Woollins
- EaSTCHEM School of Chemistry , University of St Andrews , St Andrews, KY16 9ST , UK
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