1
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Heczko M, Nowicka B. Switching of magnetic properties by topotactic reaction in a 1D CN-bridged Ni(II)-Nb(IV) system. Dalton Trans 2024; 53:5788-5795. [PMID: 38328876 DOI: 10.1039/d3dt03891b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Two 1D CN-bridged assemblies: the nearly straight Li2[Ni(cyclam)][Nb(CN)8]·7.5H2O (1) chains and the zigzag-shaped Li2[Ni(cyclam)][Nb(CN)8]·2H2O (2) chains, are obtained in the reaction between [Ni(cyclam)]2+ and [Nb(CN)8]4- in warm concentrated LiCl water solution. Both compounds are composed of alternating bimetallic Ni(II)-Nb(IV) chains and contain incorporated lithium cations, which compensate the negative charge of the coordination skeleton. The straight chain 1 (Ni-Nb-Ni angle = 153.2°) can be reversibly dehydrated under dry nitrogen flow at room temperature to an intermediate dihydrate phase 1d and further transformed to the zigzag-shaped chain 2 (Ni-Nb-Ni angle = 86.6°) by annealing at 150 °C. The process can be reversed by exposure to high humidity at room temperature, upon which 2 is converted back to 1. This water sorption-induced breathing effect is accompanied by changes in magnetic properties, most notably reflected in different values of saturation magnetization and critical field of metamagnetic transition, which indicate that both intra- and inter-chain interactions are affected by the structure reorganization.
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Affiliation(s)
- Michał Heczko
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland.
| | - Beata Nowicka
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland.
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2
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Reczyński M, Akaki M, Fukuda T, Sawada Y, Nishii K, Hagiwara M, Nitek W, Sieklucka B, Nowicka B. Hepta-coordinated Ni(II) assemblies - structure and magnetic studies. Dalton Trans 2021; 50:5251-5261. [PMID: 33881078 DOI: 10.1039/d1dt00479d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two mononuclear complexes [Ni(dapsc)(H2O)2]Cl(NO3)·H2O (1) and [Ni(dapsc)(NCS)2] (2), and a bimetallic CN-bridged trinuclear molecule [NiII(dapsc)(H2O)]2[WIV(CN)8]·11H2O (3) (dapsc = 2,6-diacetylpyridine-bis(semicarbazone)) were synthesised and characterised in terms of structure and magnetic properties. All three compounds contain Ni(ii) ions in a pentagonal bipyramid coordination geometry afforded by the equatorial pentadentate ligand (dapsc) and two O- or N-donating axial ligands. The compounds differ in the relative arrangement of the complexes, intermolecular interactions and distortion from the ideal coordination geometry. The high-field EPR and magnetometric studies show large anisotropy of the Ni(ii) centres with the D parameters in the range of -10.5 to -21.2 cm-1 and negligible antiferromagnetic interactions. The easy-axis magnetic anisotropies of 1-3 were reproduced by ab initio CASSCF/NEVPT2 calculations. The ground states consist mainly of the |MS = |±1 states, which is consistent with the fact that no out-of-phase signal can be detected in the AC magnetic susceptibility measurements.
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Affiliation(s)
- Mateusz Reczyński
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland.
| | - Mitsuru Akaki
- Center for Advanced High Magnetic Field Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Takamitsu Fukuda
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Yuya Sawada
- Center for Advanced High Magnetic Field Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Kengo Nishii
- Center for Advanced High Magnetic Field Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Masayuki Hagiwara
- Center for Advanced High Magnetic Field Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Wojciech Nitek
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland.
| | - Barbara Sieklucka
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland.
| | - Beata Nowicka
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland.
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3
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Ruiz AC, Damodaran KK, Suman SG. Towards a selective synthetic route for cobalt amino acid complexes and their application in ring opening polymerization of rac-lactide. RSC Adv 2021; 11:16326-16338. [PMID: 35479168 PMCID: PMC9030263 DOI: 10.1039/d1ra02909f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 04/19/2021] [Indexed: 01/15/2023] Open
Abstract
Catalysts based on cobalt amino acids and 2,2 bipyridine (bipy) present an attractive and cost-effective alternative as ring opening polymerization catalysts, yet this system remains underexplored despite the advantageous coordination properties of amino acids and bipy as ligands combined with the variety of accessible oxidation states and coordination geometries of cobalt. Here, metal complexes of type [Co(aa)2(bipy)] with amino acids (aa: glycine, leucine and threonine) as ligands are reported. The complexes were characterized spectroscopically (IR, UV-vis and 1H, 13C NMR for diamagnetic species), and by MS spectrometry and elemental analysis. The data reveal that the 2,2 bipyridine acts as a neutral bidentate donor coordinating to the metal ion through two nitrogen atoms and the amino acid acts as a bidentate ligand coordinating through the carboxylate and amino group forming a stable five membered ring and a pseudo-octahedral geometry around the Co center. The activity of the complexes for the ring opening polymerization (ROP) of rac-lactide is presented. The complexes are effective initiators for the ROP of rac-lactide (Kobs = 9.05 × 10−4 s−1) at 100 : 1 [rac-lactide] : [catalyst] 1 M overall concentration of lactide in toluene at 403 K. Catalysts based on Co, amino acids, and 2,2-bipyridine present an attractive and economic alternative in ring opening polymerization, and possess advantageous ligand coordination properties combined with a variety of accessible oxidation states and coordination geometries.![]()
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4
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Structural, spectroscopic insights, and antimicrobial properties of mononuclear and dinuclear metal(II) carboxylate derivatives with metronidazole. Polyhedron 2021. [DOI: 10.1016/j.poly.2020.114931] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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5
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Zhang YJ, Yin L, Li J, Hu ZB, Ouyang ZW, Song Y, Wang Z. Synthesis, crystal structures, HF-EPR, and magnetic properties of six-coordinate transition metal (Co, Ni, and Cu) compounds with a 4-amino-1,2,4-triazole Schiff-base ligand. RSC Adv 2020; 10:12833-12840. [PMID: 35492139 PMCID: PMC9051221 DOI: 10.1039/c9ra10851c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 03/10/2020] [Indexed: 12/15/2022] Open
Abstract
We have synthesized a series of transition metal compounds [M(L)2(H2O)2] (M = Co (1), Ni (2), and Cu (3)) by using the 4-amino-1,2,4-triazole Schiff-base ligand via the hydrothermal methods. They are all mononuclear compounds with the octahedral geometry. Direct-current magnetic and HF-EPR measurements were combined to reveal the negative D values (-28.78 cm-1, -10.79 cm-1) of complexes 1 and 2, showing the easy-axis magnetic anisotropies of compounds 1 and 2. Applying a dc field of 800 Oe at 2.0 K, the slow magnetic relaxation effects were observed in compound 1, which is a remarkable feature of single-ion magnets.
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Affiliation(s)
- Ya-Jie Zhang
- Wuhan National High Magnetic Field Center & School of Physics, Huazhong University of Science and Technology Wuhan Hubei 430074 P. R. China
| | - Lei Yin
- Wuhan National High Magnetic Field Center & School of Physics, Huazhong University of Science and Technology Wuhan Hubei 430074 P. R. China
| | - Jing Li
- Wuhan National High Magnetic Field Center & School of Physics, Huazhong University of Science and Technology Wuhan Hubei 430074 P. R. China
| | - Zhao-Bo Hu
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 P. R. China
| | - Zhong-Wen Ouyang
- Wuhan National High Magnetic Field Center & School of Physics, Huazhong University of Science and Technology Wuhan Hubei 430074 P. R. China
| | - You Song
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 P. R. China
| | - Zhenxing Wang
- Wuhan National High Magnetic Field Center & School of Physics, Huazhong University of Science and Technology Wuhan Hubei 430074 P. R. China
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6
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Bucinsky L, Breza M, Malček M, Powers DC, Hwang SJ, Krzystek J, Nocera DG, Telser J. High-Frequency and -Field EPR (HFEPR) Investigation of a Pseudotetrahedral CrIV Siloxide Complex and Computational Studies of Related CrIVL4 Systems. Inorg Chem 2019; 58:4907-4920. [DOI: 10.1021/acs.inorgchem.8b03512] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Lukas Bucinsky
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, SK-81237 Bratislava, Slovakia
| | - Martin Breza
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, SK-81237 Bratislava, Slovakia
| | - Michal Malček
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, SK-81237 Bratislava, Slovakia
| | - David C. Powers
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Seung Jun Hwang
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - J. Krzystek
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, United States
| | - Daniel G. Nocera
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Joshua Telser
- Department of Biological, Physical and Health Sciences, Roosevelt University, Chicago, Illinois 60605, United States
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7
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Heczko M, Sumińska E, Sieklucka B, Nowicka B. A two-fold 3D interpenetrating cyanido-bridged network based on the octa-coordinated [Mo(CN)8]4− building block. CrystEngComm 2019. [DOI: 10.1039/c9ce00851a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
By varying the reaction conditions, three CN-bridged coordination polymers of different dimensionalities and topologies are obtained from the same building blocks.
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Affiliation(s)
- Michał Heczko
- Jagiellonian University in Kraków
- Faculty of Chemistry
- 30-387 Kraków
- Poland
| | - Ewa Sumińska
- Jagiellonian University in Kraków
- Faculty of Chemistry
- 30-387 Kraków
- Poland
| | - Barbara Sieklucka
- Jagiellonian University in Kraków
- Faculty of Chemistry
- 30-387 Kraków
- Poland
| | - Beata Nowicka
- Jagiellonian University in Kraków
- Faculty of Chemistry
- 30-387 Kraków
- Poland
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8
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Rojek T, Goldeman W, Ślepokura K, Duczmal M, Wojciechowska A, Matczak-Jon E. Low pH constructed Co( ii) and Ni( ii) 1D coordination polymers based on C α-substituted analogues of zoledronic acid: structural characterization, and spectroscopic and magnetic properties. RSC Adv 2019; 9:31497-31510. [PMID: 35527974 PMCID: PMC9072500 DOI: 10.1039/c9ra05673d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 09/24/2019] [Indexed: 01/14/2023] Open
Abstract
Three novel coordination compounds based on α,α-disubstituted analogues of zoledronic acid with a cyclopropane (cpp) or cyclobutane (cbt) ring on the Cα carbon, isomorphous [Co(H2cppZol)(H2O)]·H2O (1a), [Ni(H2cppZol)(H2O)]·H2O (1b) and [Co(H2cbtZol)(H2O)]·H2O (2a), were synthesized under hydrothermal conditions at low pH. Single-crystal X-ray diffraction analysis revealed that all the compounds had a 1D double zig–zag chain architecture with an 8 + 8 ring motif formed by alternately arranged symmetrical (–O–P–O–)2 bridges linking equivalent octahedral metal centres. Both the ligand coordination mode and chain architecture displayed by 1a, 1b and 2a are unique among 1D [M(H2L)(H2O)x]·yH2O coordination polymers based on nitrogen-containing bisphosphonates reported so far. All the compounds exhibit similar decomposition pathways upon heating with thermal stabilities decreasing in the order 1b > 1a > 2a. The IR spectra revealed that lattice water release above 227, 178 and 97 °C, respectively, does not change the chain architecture leaving them intact up to ca. 320, 280 and 240 °C. Magnetic behaviour investigations indicated that 1a, 2a and 1b exhibit weak alternating antiferromagnetic–ferromagnetic exchange interactions propagated between the magnetic centres through double (–O–P–O–)2 bridges. The boundary between antiferro- and ferromagnetic couplings for the Co–O⋯O–Co angle in 1a and 2a was estimated to be ca. 80°. This value is also applicable for recently reported [M3(HL)2(H2O)6]·6H2O (M = Co, Ni) complexes based on α,α-disubstituted analogues of zoledronic acid and can be used to the explain magnetic behaviour of 1b. 1D Co(ii)/Ni(ii) coordination polymers with alternating antiferromagnetic–ferromagnetic exchange interactions between metal centers propagated through double (–O–P–O–)2 bridges.![]()
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Affiliation(s)
- Tomasz Rojek
- Department of Chemistry
- Wrocław University of Science and Technology
- 50-370 Wrocław
- Poland
| | - Waldemar Goldeman
- Department of Chemistry
- Wrocław University of Science and Technology
- 50-370 Wrocław
- Poland
| | | | - Marek Duczmal
- Department of Chemistry
- Wrocław University of Science and Technology
- 50-370 Wrocław
- Poland
| | | | - Ewa Matczak-Jon
- Department of Chemistry
- Wrocław University of Science and Technology
- 50-370 Wrocław
- Poland
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9
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Maia JR, Lima JA, Freire PTC, Melo FEA, de Menezes AS, Remédios CMR, Cardoso LP. High pressure studies on bis(l-histidinate)nickel(II) monohydrate. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 189:258-264. [PMID: 28823966 DOI: 10.1016/j.saa.2017.08.040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 08/10/2017] [Accepted: 08/13/2017] [Indexed: 06/07/2023]
Abstract
Raman spectra of bis(l-histidinate)nickel(II) monohydrate crystal were obtained for pressures up to 9.5GPa. Our results show the disappearance of some of the Raman modes and the appearance of other modes. These modifications evidence that the sample undergoes phase transitions at around 0.8 and 3.2GPa. The role played by the Ni ions and hydrogen bonds in the dynamics of the phase transitions is discussed. Under decompression, down to atmospheric pressure, the original Raman spectra are recovered, showing that both phase transitions are fully reversible.
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Affiliation(s)
- J R Maia
- Faculdade de Filosofia Dom Aureliano Mattos, Universidade Estadual do Ceará, CEP 63.900-000 Limoeiro do Norte, CE, Brazil
| | - J A Lima
- Departamento de Física, Universidade Federal do Ceará, C.P. 6030, Campus do Pici, 60440-970 Fortaleza, CE, Brazil.
| | - P T C Freire
- Departamento de Física, Universidade Federal do Ceará, C.P. 6030, Campus do Pici, 60440-970 Fortaleza, CE, Brazil
| | - F E A Melo
- Departamento de Física, Universidade Federal do Ceará, C.P. 6030, Campus do Pici, 60440-970 Fortaleza, CE, Brazil
| | - A S de Menezes
- Departamento de Física, CCET, Universidade Federal do Maranhão, Centro Tecnológico, CEP 65085-580 São Luís, MA, Brazil
| | - C M R Remédios
- Instituto de Ciencias Exatas e Naturais, Universidade Federal do Pará, CEP66075-110 Belém, PA, Brazil
| | - L P Cardoso
- Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, CEP 13083-859 Campinas, SP, Brazil
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10
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Rojek T, Goldeman W, Ślepokura K, Duczmal M, Wojciechowska A, Matczak-Jon E. 1D Co( ii) coordination polymers based on cyclobutyl- and cyclopentyl-substituted zoledronate analogues: synthesis, structural comparison, thermal stability and magnetic properties. NEW J CHEM 2018. [DOI: 10.1039/c8nj00118a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Competing magnetic exchange in 1a and 2a with predominant participation of antiferromagnetic interactions in 1a and ferromagnetic exchange in 2a.
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Affiliation(s)
- Tomasz Rojek
- Department of Chemistry
- Wrocław University of Science and Technology
- 50-370 Wrocław
- Poland
| | - Waldemar Goldeman
- Department of Chemistry
- Wrocław University of Science and Technology
- 50-370 Wrocław
- Poland
| | | | - Marek Duczmal
- Department of Chemistry
- Wrocław University of Science and Technology
- 50-370 Wrocław
- Poland
| | | | - Ewa Matczak-Jon
- Department of Chemistry
- Wrocław University of Science and Technology
- 50-370 Wrocław
- Poland
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11
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Sakiyama H, Chiba Y, Tone K, Yamasaki M, Mikuriya M, Krzystek J, Ozarowski A. Magnetic Properties of a Dinuclear Nickel(II) Complex with 2,6-Bis[(2-hydroxyethyl)methylaminomethyl]-4-methylphenolate. Inorg Chem 2017; 56:138-146. [PMID: 27976888 DOI: 10.1021/acs.inorgchem.6b01671] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Magnetic properties of dinuclear nickel(II) complex [Ni2(sym-hmp)2](BPh4)2·3.5DMF·0.5(2-PrOH) (1), where (sym-hmp)- is 2,6-bis[(2-hydroxyethyl)methylaminomethyl]-4-methylphenolate anion and DMF indicates dimethylformamide, were investigated using high-frequency and -field electron paramagnetic resonance (HFEPR). To magnetically characterize the mononuclear nickel(II) species forming the dimer, its two dinuclear zinc(II) analogues, [Zn2(sym-hmp)2](BPh4)2·3.5DMF·0.5(2-PrOH) (2) and [Zn2(sym-hmp)2](BPh4)2·2acetone·2H2O (2'), were prepared. One of them (2') was structurally characterized by X-ray diffractometry and doped with 5% mol nickel(II) ions to prepare a mixed crystal 3. From the HFEPR results on complex 1 obtained at 40 K, the spin Hamiltonian parameters of the first excited spin state (S = 1) of the dimer were accurately determined as |D1| = 9.99(2) cm-1, |E1| = 1.62(1) cm-1, and g1 = [2.25(1), 2.19(2), 2.27(2)], and for the second excited spin state (S = 2) at 150 K estimated as |D2| ≈ 3.5 cm-1. From these numbers, the single-ion zero-field splitting (ZFS) parameter of the Ni(II) ions forming the dimer was estimated as |DNi| ≈ 10-10.5 cm-1. The HFEPR spectra of 3 yielded directly the single-ion parameters for DNi = +10.1 cm-1, |ENi| = 3.1 cm-1, and giso = 2.2. On the basis of the HFEPR results, the previously obtained magnetic data (Sakiyama, H.; Tone, K.; Yamasaki, M.; Mikuriya, M. Inorg. Chim. Acta 2011, 365, 183) were reanalyzed, and the isotropic interaction parameter between the Ni(II) ions was determined as J = -70 cm-1 (Hex = -J SA·SB). Finally, density functional theory calculations yielded the J value of -90 cm-1 in a qualitative agreement with the experiment.
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Affiliation(s)
- Hiroshi Sakiyama
- Department of Material and Biological Chemistry, Faculty of Science, Yamagata University , 1-4-12 Kojirakawa, Yamagata 990-8560, Japan
| | - Yukako Chiba
- Department of Material and Biological Chemistry, Faculty of Science, Yamagata University , 1-4-12 Kojirakawa, Yamagata 990-8560, Japan
| | - Katsuya Tone
- Department of Material and Biological Chemistry, Faculty of Science, Yamagata University , 1-4-12 Kojirakawa, Yamagata 990-8560, Japan
| | - Mikio Yamasaki
- X-ray Research Laboratory, Rigaku Corporation , Matsubara 3-9-12, Akishima, Tokyo 196-8666, Japan
| | - Masahiro Mikuriya
- Department of Applied Chemistry for Environment and Research Center for Coordination Molecule-based Devices, School of Science and Technology, Kwansei Gakuin University , Gakuen 2-1, Sanda 669-1337, Japan
| | - J Krzystek
- National High Magnetic Field Laboratory, Florida State University , Tallahassee, Florida 32310, United States
| | - Andrew Ozarowski
- National High Magnetic Field Laboratory, Florida State University , Tallahassee, Florida 32310, United States
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12
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Rojek T, Goldeman W, Ślepokura K, Duczmal M, Wojciechowska A, Matczak-Jon E. Two isomorphous Co(ii) coordination polymers based on new α,α-disubstituted derivatives of zoledronic acid: synthesis, structures and properties. Dalton Trans 2017; 46:6900-6911. [DOI: 10.1039/c7dt00410a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
1D Co(ii) coordination polymers based on new derivatives of zoledronic acid. Spectroscopic and magnetic characterization.
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Affiliation(s)
- Tomasz Rojek
- Department of Chemistry
- Wrocław University of Science and Technology
- 50-370 Wrocław
- Poland
| | - Waldemar Goldeman
- Department of Chemistry
- Wrocław University of Science and Technology
- 50-370 Wrocław
- Poland
| | | | - Marek Duczmal
- Department of Chemistry
- Wrocław University of Science and Technology
- 50-370 Wrocław
- Poland
| | | | - Ewa Matczak-Jon
- Department of Chemistry
- Wrocław University of Science and Technology
- 50-370 Wrocław
- Poland
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13
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DNA/protein binding, cytotoxicity and catecholase activity studies of a piperazinyl moiety ligand based nickel(II) complex. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.05.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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14
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Pladzyk A, Ozarowski A, Ponikiewski Ł. Crystal and electronic structures of Ni(II) silanethiolates containing flexible diamine ligands. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2015.10.034] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Paul A, Mistri S, Bhunia A, Manna S, Puschmann H, Chandra Manna S. Synthesis, crystal structure, DFT/TDDFT calculation, photophysical properties and DNA binding studies of morpholino moiety ligand based two Cu(ii) complexes in combination with carboxylates. RSC Adv 2016. [DOI: 10.1039/c6ra05570b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Two Cu(II) compounds have been characterized by structure analyses and DFT/TD-DFT calculations. Both the complexes potentially bind with CT-DNA and corresponding binding constants are in the order of 105 M−1.
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Affiliation(s)
- Aparup Paul
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721102
- India
| | - Soumen Mistri
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721102
- India
| | - Apurba Bhunia
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721102
- India
| | - Soumen Manna
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721102
- India
| | | | - Subal Chandra Manna
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721102
- India
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16
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Jiang SD, Maganas D, Levesanos N, Ferentinos E, Haas S, Thirunavukkuarasu K, Krzystek J, Dressel M, Bogani L, Neese F, Kyritsis P. Direct Observation of Very Large Zero-Field Splitting in a Tetrahedral Ni(II)Se4 Coordination Complex. J Am Chem Soc 2015; 137:12923-8. [PMID: 26352187 DOI: 10.1021/jacs.5b06716] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The high-spin (S = 1) tetrahedral Ni(II) complex [Ni{(i)Pr2P(Se)NP(Se)(i)Pr2}2] was investigated by magnetometry, spectroscopic, and quantum chemical methods. Angle-resolved magnetometry studies revealed the orientation of the magnetization principal axes. The very large zero-field splitting (zfs), D = 45.40(2) cm(-1), E = 1.91(2) cm(-1), of the complex was accurately determined by far-infrared magnetic spectroscopy, directly observing transitions between the spin sublevels of the triplet ground state. These are the largest zfs values ever determined--directly--for a high-spin Ni(II) complex. Ab initio calculations further probed the electronic structure of the system, elucidating the factors controlling the sign and magnitude of D. The latter is dominated by spin-orbit coupling contributions of the Ni ions, whereas the corresponding effects of the Se atoms are remarkably smaller.
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Affiliation(s)
- Shang-Da Jiang
- 1. Physikalisches Institut, Universität Stuttgart , Pfaffenwaldring 57, D-70550, Stuttgart, Germany
| | - Dimitrios Maganas
- Max-Planck-Institut für Chemische Energiekonversion , Stiftstrasse 34-36, D-45470 Mülheim an der Ruhr, Germany
| | - Nikolaos Levesanos
- Laboratory of Inorganic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens , Panepistimiopolis, Athens, 157 71 Greece
| | - Eleftherios Ferentinos
- Laboratory of Inorganic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens , Panepistimiopolis, Athens, 157 71 Greece
| | - Sabrina Haas
- 1. Physikalisches Institut, Universität Stuttgart , Pfaffenwaldring 57, D-70550, Stuttgart, Germany
| | | | - J Krzystek
- National High Magnetic Field Laboratory, Florida State University , Tallahassee, Florida 32310, United States
| | - Martin Dressel
- 1. Physikalisches Institut, Universität Stuttgart , Pfaffenwaldring 57, D-70550, Stuttgart, Germany
| | - Lapo Bogani
- 1. Physikalisches Institut, Universität Stuttgart , Pfaffenwaldring 57, D-70550, Stuttgart, Germany
| | - Frank Neese
- Max-Planck-Institut für Chemische Energiekonversion , Stiftstrasse 34-36, D-45470 Mülheim an der Ruhr, Germany
| | - Panayotis Kyritsis
- Laboratory of Inorganic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens , Panepistimiopolis, Athens, 157 71 Greece
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17
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İnci D, Aydın R, Vatan Ö, Yılmaz D, Gençkal HM, Zorlu Y, Cavaş T. Binary and ternary new water soluble copper(II) complexes of l-tyrosine and substituted 1,10-phenanthrolines: effect of substitution on DNA interactions and cytotoxicities. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 145:313-324. [PMID: 25795604 DOI: 10.1016/j.saa.2015.03.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 01/06/2015] [Accepted: 03/01/2015] [Indexed: 06/04/2023]
Abstract
Binary and ternary water soluble copper(II) complexes - [Cu(nphen)2(H2O)](NO3)2·H2O (1), [Cu(phen)2(H2O)](NO3)2 (2), [Cu(nphen)(l-tyr)(H2O)]NO3·2H2O (3), [Cu(phen)(tyr)(H2O)] NO3·2H2O (4) - and diquarternary salts of nphen and phen (nphen=5-nitro-1,10-phenanthroline, phen=1,10-phenanthroline and tyr=l-tyrosine) have been synthesized and characterized by CHN analysis, (1)H NMR, (13)C NMR and IR spectroscopy, thermal analysis and single crystal X-ray diffraction techniques. The CT-DNA binding properties of these compounds have been investigated by thermal denaturation measurements, absorption and emission spectroscopy. The supercoiled pUC19 plasmid DNA cleavage activity of these compounds has been explored by agarose gel electrophoresis. The cytotoxicity of these compounds against MCF-7, Caco-2, A549 cancer cells and BEAS-2B healthy cells was also studied by using XTT method. The complexes 1-4 exhibit significant high cytotoxicity with low IC50 values in compared with cisplatin. The effect of the substituents of phen and coordinated amino acid in the above complexes are presented and discussed.
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Affiliation(s)
- Duygu İnci
- Department of Chemistry, Faculty of Arts and Sciences, Uludag University, 16059 Bursa, Turkey
| | - Rahmiye Aydın
- Department of Chemistry, Faculty of Arts and Sciences, Uludag University, 16059 Bursa, Turkey.
| | - Özgür Vatan
- Department of Biology, Faculty of Arts and Sciences, Uludag University, 16059 Bursa, Turkey
| | - Dilek Yılmaz
- Department of Biology, Faculty of Arts and Sciences, Uludag University, 16059 Bursa, Turkey
| | - Hasene Mutlu Gençkal
- Department of Chemistry, Faculty of Arts and Sciences, Uludag University, 16059 Bursa, Turkey
| | - Yunus Zorlu
- Department of Chemistry, Faculty of Science, Gebze Institute of Technology, 41400 Kocaeli, Turkey
| | - Tolga Cavaş
- Department of Biology, Faculty of Arts and Sciences, Uludag University, 16059 Bursa, Turkey
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18
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Wojciechowska A, Janczak J, Staszak Z, Duczmal M, Zierkiewicz W, Tokar J, Ozarowski A. Structural, spectroscopic, magnetic behavior and DFT investigations ofl-tyrosinato nickel(ii) coordination polymer. NEW J CHEM 2015. [DOI: 10.1039/c5nj00972c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The 4,4′-bpy molecules are weakly bonded with nickel(ii) ions in 1Dl-tyrosinato coordination polymer.
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Affiliation(s)
| | - Jan Janczak
- Institute of Low Temperature and Structure Research Polish Academy of Sciences
- 50-422 Wroclaw
- Poland
| | - Zbigniew Staszak
- Faculty of Computer Science and Management
- Wroclaw University of Technology
- 50-370 Wroclaw
- Poland
| | - Marek Duczmal
- Faculty of Chemistry
- Wroclaw University of Technology
- 50-370 Wroclaw
- Poland
| | - Wiktor Zierkiewicz
- Faculty of Chemistry
- Wroclaw University of Technology
- 50-370 Wroclaw
- Poland
| | - Jadwiga Tokar
- Faculty of Chemistry
- Wroclaw University of Technology
- 50-370 Wroclaw
- Poland
| | - Andrew Ozarowski
- National High Magnetic Field Laboratory
- Florida State University
- Tallahassee
- USA
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19
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Structural and spectroscopic properties and density functional theory (DFT) calculations of a linearly bridged zinc(II) l-tyrosinato complex. Polyhedron 2015. [DOI: 10.1016/j.poly.2014.08.066] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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20
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Gorczyński A, Wałęsa-Chorab M, Kubicki M, Korabik M, Patroniak V. New complexes of 6,6″-dimethyl-2,2′:6′,2″-terpyridine with Ni(II) ions: Synthesis, structure and magnetic properties. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.03.058] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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21
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Dylong A, Sowa M, Goldeman W, Ślepokura K, Duczmal M, Wojciechowska A, Matczak-Jon E. Imidazo[1,2-a]pyridin-2-ylacetic acid and two pairs of isomorphous ML2(H2O)2 dihydrates (M=Ni, Co and Mn, Cd) based on its anion: Syntheses, crystal structures and properties. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.03.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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22
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High-frequency and high-field electron paramagnetic resonance (HFEPR): a new spectroscopic tool for bioinorganic chemistry. J Biol Inorg Chem 2014; 19:297-318. [DOI: 10.1007/s00775-013-1084-3] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Accepted: 12/27/2013] [Indexed: 12/27/2022]
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23
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Kurc T, Videnova-Adrabinska V, Turowska-Tyrk I, Duczmal M, Jerzykiewicz M. Synthesis, crystal structure and magnetic properties of a novel copper(II) complex with sulfoisophthalic acid. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.08.059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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