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Bhunia P, Gomila RM, Frontera A, Ghosh A. Shift of the reduction potential of nickel(II) Schiff base complexes in the presence of redox innocent metal ions. Dalton Trans 2024; 53:12316-12330. [PMID: 38984589 DOI: 10.1039/d4dt00953c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
With the objective of gaining insight into the modulation of the reduction potential of the Ni(II/I) couple, we have synthesized two mononuclear nickel(II) complexes, NiLen (H2Len = N,N'-bis(3-methoxysalicylidene)-1,2-diamino-2-methylpropane) and NiLpn (H2Lpn = N,N'-bis(3-methoxysalicylidene)-1,3-diamino-2,2-dimethylpropane) of two N2O4 donor ligands and recorded their cyclic voltammograms. Both the nickel complexes show reversible reduction processes for the Ni(II/I) couple in acetonitrile solution but the reduction potential of NiLpn (E1/2 = -1.883 V) is 188 mV more positive than that of NiLen (E1/2 = -2.071 V). In the presence of redox inactive metal ions (Li+, Na+, K+, Mg2+, Ca2+ and Ba2+), the reduction potentials are shifted by 49-331 mV and 99-435 mV towards positive values compared to NiLen and NiLpn, respectively. The shift increases with the decrease of the pKa of the respective aqua-complexes of the metal ion but is poorly co-linear; however, better linearity is found when the shift of the mono- and bi-positive metal ion aqua complexes is plotted separately. Spectrophotometric titrations of these two nickel complexes with the guest metal ions in acetonitrile showed a well-anchored isosbestic point in all cases, confirming the adduct formation of NiLen and NiLpn with the metal ions. Structural analysis of single crystals, [(NiLen)Li(H2O)2]·ClO4 (1), [(NiLpn)Li(H2O)]·ClO4 (2), [(NiLpn)2Na]·BF4 (3) and [(NiLpn)2Ba(H2O)(ClO4)]·ClO4 (4), also corroborates the heterometallic adduct formation. The orbital energies of the optimised heterometallic adducts from which electron transfers originated were calculated in order to explain the observed reduction process. A strong linear connection between the calculated orbital energies and the experimental E1/2 values was observed. According to MEP and 2D vector field plots, the largest shift for divalent metal ions is most likely caused by the local electric field that they impose in addition to Lewis acidity.
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Affiliation(s)
- Pradip Bhunia
- Department of Chemistry, University College of Science, University of Calcutta, 92, A.P.C. Road, Kolkata-700 009, India.
| | - Rosa M Gomila
- Departament de Química, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, 07122 Palma de Mallorca, Baleares, Spain.
| | - Antonio Frontera
- Departament de Química, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, 07122 Palma de Mallorca, Baleares, Spain.
| | - Ashutosh Ghosh
- Department of Chemistry, University College of Science, University of Calcutta, 92, A.P.C. Road, Kolkata-700 009, India.
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Kinzhalov MA, Kinzhalova EI, Karnoukhova VA, Ananyev IV, Gomila RM, Frontera A, Kukushkin VY, Bokach NA. Triiodide-Based Chair-Like Copper Complex Assembled by Halogen Bonding. Inorg Chem 2024; 63:191-202. [PMID: 38108293 DOI: 10.1021/acs.inorgchem.3c02990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Cocrystallization of the dimeric [Cu2(μ-I)2(CNXyl)4] (Xyl = 2,6-Me2C6H3, 1) and polymeric catena-[Cu(μ-I)(CNC6H3-2-Cl-6-Me)2] (2) complexes with I2 at different molar ratios between the reactants resulted in a series of (RNC)2CuI-based crystal polyiodides formed along with gradual accumulation of iodine, namely the cocrystals [1·I2]·[Cu(μ1,1-I3)(CNXyl)2]2 followed by the generation of [Cu(μ1,3-I3)(CNXyl)2]2·2I2 (5·2I2) or [Cu(μ1,1-I3)(CNC6H3-2-Cl-6-Me)2]2 and then [Cu(μ1,3-I3)(CNC6H3-2-Cl-6-Me)2]n·n/2I2. The polyiodide 5·2I2 exhibits a novel supramolecular motif─a purely inorganic halogen-bonded Cu2(μ1,3-I3)2 core in the chair conformation. The X-ray structure of 5·2I2 featuring I···I contacts was analyzed by a set of theoretical methods and attributed to moderately strong halogen bonding (from -3.2 to -3.9 kcal/mol); these interactions determine the supramolecular architecture of 5·2I2.
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Affiliation(s)
- Mikhail A Kinzhalov
- Saint Petersburg State University, Universitetskaya Nab. 7/9, Saint Petersburg 199034, Russian Federation
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, 30 Lenin Av., Tomsk 634050, Russian Federation
| | - Ekaterina I Kinzhalova
- Saint Petersburg State University, Universitetskaya Nab. 7/9, Saint Petersburg 199034, Russian Federation
| | - Valentina A Karnoukhova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova str. 28, Moscow 119991, Russian Federation
| | - Ivan V Ananyev
- N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, GSP-1, Leninsky Prospect, 31, Moscow 119991, Russian Federation
| | - Rosa M Gomila
- Department of Chemistry, Universitat de les Illes Balears, Crta de Valldemossa km 7.5, Palma de Mallorca 07122, Baleares, Spain
| | - Antonio Frontera
- Department of Chemistry, Universitat de les Illes Balears, Crta de Valldemossa km 7.5, Palma de Mallorca 07122, Baleares, Spain
| | - Vadim Yu Kukushkin
- Saint Petersburg State University, Universitetskaya Nab. 7/9, Saint Petersburg 199034, Russian Federation
- Laboratory of Crystal Engineering of Functional Materials, South Ural State University, 76, Lenin Av., Chelyabinsk 454080, Russian Federation
| | - Nadezhda A Bokach
- Saint Petersburg State University, Universitetskaya Nab. 7/9, Saint Petersburg 199034, Russian Federation
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, 30 Lenin Av., Tomsk 634050, Russian Federation
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3
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Unprecedented bi- and trinuclear palladium(II)-sodium complexes from a salophen-type Schiff base: Synthesis, characterization, thermal behavior, and in vitro biological activities. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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4
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Bhargavi G, Sahu U, Rajasekharan MV. Na/Cu
II
/Cu
I
Complexes of Compartmental Schiff Base Ligands Incorporating the [Cu(NCO)
2
]
−
Ion. ChemistrySelect 2022. [DOI: 10.1002/slct.202103429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Upasana Sahu
- School of Chemistry University of Hyderabad Hyderabad 500 046, TS India
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Ghosh K, Frontera A, Chattopadhyay S. A theoretical insight on the anion⋯anion interactions observed in the solid state structure of a hetero-trinuclear complex. CrystEngComm 2021. [DOI: 10.1039/d0ce01513j] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A hetero-nuclear cobalt(iii)/potassium complex has been synthesized and characterized by several analytical techniques. DFT computations indicate the existence of anion⋯anion interactions in its solid state.
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Affiliation(s)
- Kousik Ghosh
- Department of Chemistry
- Inorganic Section
- Jadavpur University
- Kolkata – 700032
- India
| | - Antonio Frontera
- Departamento de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
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6
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Banerjee A, Chattopadhyay S. Dinuclear mixed valence cobalt(II/III) and hetero-tetranuclear cobalt(III)/Na complexes with a compartmental ligand: Synthesis, characterization and use as catalysts for oxidative dimerisation of 2-aminophenol. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120044] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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7
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Majumdar D, Das D, Nag S, Bhattacharyya M, Singh DK, Parai D, Bankura K, Mishra D. A rare hetero-bimetallic Zn(II)/Ca(II) Schiff base complex: Synthesis, crystal structure, DFT, molecular docking and unveiling antimicrobial activity. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128951] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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8
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Dutta S, Mayans J, Ghosh A. Facile synthesis of a new Cu(ii) complex with an unsymmetrical ligand and its use as an O 3 donor metalloligand in the synthesis of Cu(ii)-Mn(ii) complexes: structures, magnetic properties, and catalytic oxidase activities. Dalton Trans 2020; 49:1276-1291. [PMID: 31909778 DOI: 10.1039/c9dt04315b] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new, facile Cu(ii) template method has been employed for the unsymmetrical dicondensation of 1,2-ethylenediamine with salicylaldehyde and o-vanillin. The mononuclear complex, [CuL] (1), thus obtained, has been used as an O3 donor metalloligand for the synthesis of four new Cu(ii)-Mn(ii) complexes, [(CuL)MnCl2] (2), [(CuL)Mn(NO3)2(CH3OH)]n (3), {[(CuL)Mn(benz)(H2O)]2·(CuL)2(ClO4)2} (4) and [(CuL)Mn(benz)Cl]2 (5) (where benz = benzoate). Single-crystal structural analyses reveal that 2 is a dinuclear complex while complex 3 is polymeric with a repeating dinuclear [(CuL)Mn(NO3)2(CH3OH)] unit, linked via the nitrate ion. Both 4 and 5 are discrete tetranuclear complexes, where the dinuclear units [(CuL)Mn(benz)(H2O)] and [(CuL)Mn(benz)Cl] are connected by double benzoate and double chloride bridges, respectively. In complex 4, two monomeric [CuL] units are cocrystallized with the tetranuclear complex. An important difference in the structure of 4 from the other three complexes is that one solvent water molecule is coordinated to each Mn(ii) ion, which makes complex 4 catalytically very active towards mimicking catecholase and phenoxazinone synthase-like oxidation reactions. The turnover numbers (kcat) for the aerial oxidation of 3,5-di-tert-butylcatechol and o-aminophenol are 399 h-1 and 230 h-1, respectively. The evidence of the intermediate species in the mass spectra indicates possible heterometallic cooperation where the Mn(ii) center helps in substrate binding and Cu(ii) participates in the oxidation reactions with molecular oxygen. Cyclic voltammetry measurements suggest the reduction of Cu(ii) to Cu(i) during the catalytic process. Temperature-dependent dc molar magnetic susceptibility measurements reveal that complexes 2-5 are antiferromagnetically coupled with the exchange coupling constants (J) of J = -13.5 cm-1 and J = -13.5 cm-1 for 2 and 3, respectively, J1 = -12.6 cm-1 and J2 = -1.20 cm-1 for complex 4 and J1 = -13.24 cm-1 and J2 = 0.36 cm-1 for complex 5 as is expected from the Cu-O-Mn bridging angles.
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Affiliation(s)
- Sabarni Dutta
- Department of Chemistry, University College of Science, University of Calcutta, 92, A.P.C. Road, Kolkata 700 009, India.
| | - Júlia Mayans
- Departament de Química Inorgànica I Orgànica, Secció Inorgànica and Institut de Nanosciència I Nanotecnologia (IN2UB), Martíi Franqués 1-11, 08028, Barcelona, Spain
| | - Ashutosh Ghosh
- Department of Chemistry, University College of Science, University of Calcutta, 92, A.P.C. Road, Kolkata 700 009, India.
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Mondal I, Chattopadhyay S. Development of multi-metallic complexes using metal-salen complexes as building blocks. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1695048] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Ipsita Mondal
- Department of Chemistry, Jadavpur University, Kolkata, India
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10
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Majumdar D, Dey S, Das D, Singh DK, Das S, Bankura K, Mishra D. Heterometallic Zn(II)-K(I) complex with salen-type Schiff-base ligand: Synthesis, crystal structure, solid-state photoluminescent property and theoretical study. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.02.092] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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11
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Mandal S, Roy S, Mondal S, Sparkes HA, Mohanta S. Linear trinuclear copper(II)-alkali/alkaline earth metal compounds derived from a compartmental ligand. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.05.034] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Bikbaeva ZM, Ivanov DM, Novikov AS, Ananyev IV, Bokach NA, Kukushkin VY. Electrophilic-Nucleophilic Dualism of Nickel(II) toward Ni···I Noncovalent Interactions: Semicoordination of Iodine Centers via Electron Belt and Halogen Bonding via σ-Hole. Inorg Chem 2018; 56:13562-13578. [PMID: 29068669 DOI: 10.1021/acs.inorgchem.7b02224] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The nitrosoguanidinate complex [Ni{NH═C(NMe2)NN(O)}2] (1) was cocrystallized with I2 and sym-trifluorotriiodobenzene (FIB) to give associates 1·2I2 and 1·2FIB. Structures of these solid species were studied by XRD followed by topological analysis of the electron density distribution within the framework of Bader's approach (QTAIM) at the M06/DZP-DKH level of theory and Hirshfeld surface analysis. Our results along with inspection of XRD (CCDC) data, accompanied by the theoretical calculations, allowed the identification of three types of Ni···I contacts. The Ni···I semicoordination of the electrophilic nickel(II) center with electron belt of I2 was observed in 1·2I2, the metal-involving halogen bonding between the nucleophilic nickel(II)-dz2 center and σ-hole of iodine center was recognized and confirmed theoretically in the structure of [FeNi(CN)4(IPz)(H2O)]n (IPz = 4-N-coordinated 2-I-pyrazine), whereas the arrangement of FIB in 1·2FIB provides a boundary case between the semicoordination and the halogen Ni···I bondings. In 1·2I2 and 1·2FIB, noncovalent interactions were studied by variable temperature XRD detecting the expansion of noncovalent contacts with preservation of covalent bond lengths upon the temperature increase from 100 to 300 K. The nature and energies of all identified types of the Ni···I noncovalent interactions in the obtained (1·2I2 and 1·2FIB) and in the previously reported ([FeNi(CN)4(IPz)(H2O)]n, [NiL2](I3)2·2I2 (L = o-phenylene-bis(dimethylphosphine), [NiL]I2 (L = 1,4,8,11-tetra-azacyclotetradecane), Ni(en)2]n[AgI2]2n (en = ethylenediamine), and [NiL](ClO4) (L = 4-iodo-2-((2-(2-(2-pyridyl)ethylsulfanyl)ethylimino)methyl)-phenolate)) structures were studied theoretically. The estimated strengths of these Ni···I noncovalent contacts vary from 1.6 to 4.1 kcal/mol and, as expected, become weaker on heating. This work is the first emphasizing electrophilic-nucleophilic dualism of any metal center toward noncovalent interactions.
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Affiliation(s)
- Zarina M Bikbaeva
- Saint Petersburg State University , Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Daniil M Ivanov
- Saint Petersburg State University , Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Alexander S Novikov
- Saint Petersburg State University , Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Ivan V Ananyev
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences , Vavilova St., 28, 119991 Moscow, Russian Federation
| | - Nadezhda A Bokach
- Saint Petersburg State University , Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Vadim Yu Kukushkin
- Saint Petersburg State University , Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
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13
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Ghosh K, Harms K, Bauzá A, Frontera A, Chattopadhyay S. Heteronuclear cobalt(iii)/sodium complexes with salen type compartmental Schiff base ligands: methylene spacer regulated variation in nuclearity. Dalton Trans 2018; 47:331-347. [DOI: 10.1039/c7dt03929h] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Three unique heteronuclear cobalt(iii)/sodium Schiff base complexes have been synthesized and characterized. Nuclearity of these complexes changes as a result of alteration of the steric hindrance in the ligand moiety.
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Affiliation(s)
- Kousik Ghosh
- Department of Chemistry
- Inorganic Section
- Jadavpur University
- Kolkata 700032
- India
| | - Klaus Harms
- Fachbereich Chemie
- Philipps-Universität Marburg
- Hans-Meerwein-Strasse
- D-35032 Marburg
- Germany
| | - Antonio Bauzá
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
| | - Antonio Frontera
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
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14
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Nandy M, Saha D, Rizzoli C, Shit S. Trigonal dodecahedral sodium coordination in a trinuclear copper(II)-sodium complex incorporating a salen-type compartmental Schiff base. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2017. [DOI: 10.1515/znb-2016-0208] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
A new trinuclear heterometallic complex, [(CuL)Na(CuL)]·ClO4 (1), has been prepared using a Schiff base, H2L (where H2L=N,N′-(1,2-phenylene)-bis(3-methoxysalicylideneimine) and characterized by elemental analysis, Fourier transform infra-red (FT-IR) spectroscopy, UV/Vis, magnetic, electrochemical, and single crystal X-ray diffraction methods. The structure analysis reveals that two metallo-ligand [(CuL)] units are connected to each other by a sodium ion resulting in the cationic unit [(CuL)Na(CuL)]+. Both the copper(II) ions display an almost square planar geometry while the sodium ion adopts a trigonal-dodecahedral coordination geometry. The spectroscopic and other physicochemical studies are in good agreement with the crystal structure of the complex.
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Affiliation(s)
- Madhusudan Nandy
- Department of Basic Engineering Science and Humanities, Netaji Subhash Engineering College, Panchpota, Garia, Kolkata-700 152, India
| | - Debnath Saha
- Department of Chemistry, Jalpaiguri Government Engineering College, Jalpaiguri-735 102, West Bengal, India
- A. P. C. Roy Government College, Matigara, Siliguri-734010, West Bengal, India
| | - Corrado Rizzoli
- Università degli Studi di Parma, Dipartimento di Chimica, Parco Area delle Scienze 17/A, I-43123 Parma, Italy
| | - Shyamapada Shit
- Department of Chemistry, Jalpaiguri Government Engineering College, Jalpaiguri-735 102, West Bengal, India , Tel.: +91-9433261720, Fax: +91 3561 256143
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Syntheses, crystal structures, lone pair functionality and electrospray ionization mass spectral properties of trinuclear, dimer of trinuclear and trinuclear-based one-dimensional systems of copper(II) and lead(II). Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.10.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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16
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Makola MM, Steenkamp PA, Dubery IA, Kabanda MM, Madala NE. Preferential alkali metal adduct formation by cis geometrical isomers of dicaffeoylquinic acids allows for efficient discrimination from their trans isomers during ultra-high-performance liquid chromatography/quadrupole time-of-flight mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2016; 30:1011-8. [PMID: 27003038 DOI: 10.1002/rcm.7526] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 01/21/2016] [Accepted: 02/01/2016] [Indexed: 05/15/2023]
Abstract
RATIONALE Caffeoylquinic acid (CQA) derivatives are a group of structurally diverse phytochemicals that have attracted attention due to their many health benefits. The structural diversity of these molecules is due in part to the presence of regio- and geometrical isomerism. This structural diversity hampers the accurate annotation of these molecules in plant extracts. Mass spectrometry (MS) is successfully used to differentiate between the different regioisomers of the CQA derivatives; however, the accurate discrimination of the geometrical isomers of these molecules has proven to be an elusive task. METHODS UV-irradiated methanolic solutions of diCQA were analyzed using an ultra-high-performance liquid chromatography/quadrupole time-of-flight mass spectrometry (UHPLC/QTOFMS) method in negative ionisation mode. An in-source collision-induced dissociation (ISCID) method was optimized by varying both the capillary and cone voltages to achieve differential fragmentation patterns between UV-generated geometrical isomers of the diCQAs during MS analyses. RESULTS Changes in the capillary voltage did not cause a significant difference to the fragmentation patterns of the four geometrical isomers, while changes in the cone voltage resulted in significant differences in the fragmentation patterns. The results also show, for the first time, the preferential formation of alkali metal (Li(+), Na(+) and K(+)) adducts by the cis geometrical isomers of diCQAs, compared to their trans counterparts. CONCLUSIONS Optimized QTOFMS-based methods may be used to differentiate the geometrical isomers of diCQAs. Finally, additives such as metal salts to induce adduct formation can be applied as an alternative method to differentiate closely related isomers which could have been difficult to differentiate under normal MS settings.
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Affiliation(s)
- Mpho M Makola
- Department of Biochemistry, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa
| | - Paul A Steenkamp
- Department of Biochemistry, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa
- CSIR Biosciences, Natural Products and Agroprocessing Group, Pretoria, 0001, South Africa
| | - Ian A Dubery
- Department of Biochemistry, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa
| | - Mwadham M Kabanda
- Department of Chemistry, North-West University (Mafikeng Campus), Private Bag x2046, Mmabatho, 2735, South Africa
| | - Ntakadzeni E Madala
- Department of Biochemistry, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa
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Unique examples of copper(II)/sodium(I) and nickel(II)/sodium(I) Schiff base complexes with bridging bis-bidentate Salen type ligand: Synthesis, crystal structures and antibacterial studies. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.02.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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18
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Mahlooji N, Behzad M, Tarahhomi A, Maroney M, Rudbari HA, Bruno G, Ghanbari B. Synthesis, crystal structures and Hirshfeld surface analyses of two new Salen type nickel/sodium heteronuclear complexes. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.01.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2022]
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19
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Akine S, Utsuno F, Piao S, Orita H, Tsuzuki S, Nabeshima T. Synthesis, Ion Recognition Ability, and Metal-Assisted Aggregation Behavior of Dinuclear Metallohosts Having a Bis(Saloph) Macrocyclic Ligand. Inorg Chem 2016; 55:810-21. [PMID: 26734931 DOI: 10.1021/acs.inorgchem.5b02288] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Macrocyclic molecule 1 that has two saloph coordination sites was designed and synthesized. The macrocycle 1 was easily converted into the corresponding metallohosts 2 and 3 by the reaction with nickel(II) and palladium(II), respectively. As expected from the molecular structure of these metallohosts having an 18-crown-6-like cavity, the nickel(II) metallohost 2 showed excellent binding affinity toward Na(+), Ca(2+), and Sr(2+) to give 1:1 host-guest complexes. Preorganization effect due to the extremely rigid metal-containing macrocycle was suggested to be a major factor for the strong binding. Larger cations such as K(+), Rb(+), Cs(+), and Ba(2+) gave higher aggregated host-guest complexes such as 22M, 23M2, and 24M3. Density functional theory calculations revealed that smaller metal ions do not occupy the center of each macrocycle in the sandwich structures 22M, while larger Cs(+) simultaneously interacts with all the 12 oxygen donor atoms. On the basis of the interaction energy calculations, the preference for 2·Na over 22Na can be explained by destabilization of 22Na due to the elongated Na-O bonds and repulsive three-body interactions. When the ionic radius of the guest ion increases (K(+), Rb(+), Cs(+)), this destabilization becomes less significant and the formation of sandwich complexes 22M is favored. Such aggregation would significantly affect the physical and chemical properties of the metal complexes due to the interplane interactions between the metal centers.
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Affiliation(s)
- Shigehisa Akine
- Graduate School of Natural Science and Technology, Kanazawa University , Kakuma-machi, Kanazawa 920-1192, Japan
| | - Fumihiko Utsuno
- Faculty of Pure and Applied Sciences, University of Tsukuba , 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
| | - Shunjin Piao
- Faculty of Pure and Applied Sciences, University of Tsukuba , 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
| | - Hideo Orita
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST) , 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
| | - Seiji Tsuzuki
- Research Center for Computational Design of Advanced Functional Materials (CD-FMat), National Institute of Advanced Industrial Science and Technology (AIST) , 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
| | - Tatsuya Nabeshima
- Faculty of Pure and Applied Sciences, University of Tsukuba , 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
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20
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Banerjee S, Bauzá A, Frontera A, Saha A. Exploration of unconventional π–hole and C–H⋯H–C types of supramolecular interactions in a trinuclear Cd(ii) and a heteronuclear Cd(ii)–Ni(ii) complex and experimental evidence for preferential site selection of the ligand by 3d and 4d metal ions. RSC Adv 2016. [DOI: 10.1039/c6ra04428j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
We report the synthesis of a trinuclear cadmium(ii) (1) and a di(phenoxido)-bridged dinuclear cadmium(ii)–nickel(ii) (2) complex derived from a bicompartmental (N2O4) Schiff base ligand.
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Affiliation(s)
- Saikat Banerjee
- Department of Chemistry
- Jadavpur University
- Kolkata-700032, India
| | - Antonio Bauzá
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma (Baleares), Spain
| | - Antonio Frontera
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma (Baleares), Spain
| | - Amrita Saha
- Department of Chemistry
- Jadavpur University
- Kolkata-700032, India
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21
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Lane AC, Barnes CL, Antholine WE, Wang D, Fiedler AT, Walensky JR. Di- and Trinuclear Mixed-Valence Copper Amidinate Complexes from Reduction of Iodine. Inorg Chem 2015; 54:8509-17. [PMID: 26252561 PMCID: PMC4733884 DOI: 10.1021/acs.inorgchem.5b01161] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Molecular examples of mixed-valence copper complexes through chemical oxidation are rare but invoked in the mechanism of substrate activation, especially oxygen, in copper-containing enzymes. To examine the cooperative chemistry between two metals in close proximity to each other we began studying the reactivity of a dinuclear Cu(I) amidinate complex. The reaction of [(2,6-Me2C6H3N)2C(H)]2Cu2, 1, with I2 in tetrahydrofuran (THF), CH3CN, and toluene affords three new mixed-valence copper complexes [(2,6-Me2C6H3N)2C(H)]2Cu2(μ2-I3)(THF)2, 2, [(2,6-Me2C6H3N)2C(H)]2Cu2(μ2-I) (NCMe)2, 3, and [(2,6-Me2C6H3N)2C(H)]3Cu3(μ3-I)2, 4, respectively. The first two compounds were characterized by UV-vis and electron paramagnetic resonance spectroscopies, and their molecular structure was determined by X-ray crystallography. Both di- and trinuclear mixed-valence intermediates were characterized for the reaction of compound 1 to compound 4, and the molecular structure of 4 was determined by X-ray crystallography. The electronic structure of each of these complexes was also investigated using density functional theory.
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Affiliation(s)
- Andrew C. Lane
- Department of Chemistry, University of Missouri, 601 S. College Avenue, Columbia, Missouri 65211
| | - Charles L. Barnes
- Department of Chemistry, University of Missouri, 601 S. College Avenue, Columbia, Missouri 65211
| | - William E. Antholine
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, Wisconsin 53226
| | - Denan Wang
- Department of Chemistry, Marquette University, 535 North 14 Street, Milwaukee, Wisconsin 53233
| | - Adam T. Fiedler
- Department of Chemistry, Marquette University, 535 North 14 Street, Milwaukee, Wisconsin 53233
| | - Justin R. Walensky
- Department of Chemistry, University of Missouri, 601 S. College Avenue, Columbia, Missouri 65211
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22
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Ghosh S, Mandal L, Mohanta S. Exploration of weak interaction directed self-assemblies on reacting mononuclear copper(II)/nickel(II)⋯water host⋯guest systems of a double-compartment ligand with mono/di/tricarboxylic acids. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.04.033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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23
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Syntheses, structures and catecholase activity of two cobalt(III) complexes derived from N,N′-ethylenebis(3-ethoxysalicylaldiimine): A special host–guest system from a special ligand. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.06.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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Marinescu G, Maxim C, Clérac R, Andruh M. [RuIII(valen)(CN)2]−: a New Building Block To Design 4d–4f Heterometallic Complexes. Inorg Chem 2015; 54:5621-3. [DOI: 10.1021/acs.inorgchem.5b00889] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gabriela Marinescu
- “Ilie Murgulescu” Institute
of Physical Chemistry, Romanian Academy, Spl. Independentei no. 202, 060021 Bucharest, Romania
| | - Catalin Maxim
- Inorganic Chemistry Laboratory, Faculty of Chemistry, University of Bucharest, Str. Dumbrava Rosie no. 23, 020464 Bucharest, Romania
| | - Rodolphe Clérac
- CNRS, CRPP, UPR 8641, F-33600 Pessac, France
- Univ. Bordeaux, CRPP, UPR 8641, F-33600 Pessac, France
| | - Marius Andruh
- Inorganic Chemistry Laboratory, Faculty of Chemistry, University of Bucharest, Str. Dumbrava Rosie no. 23, 020464 Bucharest, Romania
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25
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Mononuclear and heterometallic dinuclear, trinuclear and dimer-of-dinuclear complexes derived from single- and double-compartment Schiff base ligands having a less utilized diamine. Polyhedron 2015. [DOI: 10.1016/j.poly.2014.10.028] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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26
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Moroz OV, Trush VA, Sliva TY, Konovalova IS, Amirkhanov VM. Crystal structure of {μ-6,6'-dimeth-oxy-2,2'-[ethane-1,2-diylbis(nitrilo-methanylyl-idene)]diphenolato}(meth-anol)(nitrato)nickel(II)sodium. Acta Crystallogr Sect E Struct Rep Online 2014; 70:305-8. [PMID: 25484729 PMCID: PMC4257329 DOI: 10.1107/s160053681402159x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Accepted: 09/30/2014] [Indexed: 11/19/2022]
Abstract
Two phenolate O atoms provided by a Schiff base ligand create a double bridge between Ni2+ and Na+ ions. The coordination environment of the Ni2+ ion is square-planar and it has an unusual seven-coordinated geometry: four atoms from the Schiff base ligand, two from a nitrate anion, which coordinates in a bidentate chelating mode, and one O atom from the coordinated methanol molecule. C—H⋯O weak hydrogen-bond interactions result in the formation of chains along the b-axis direction which are further assembled by bifurcated O—H⋯O hydrogen bonds and π-stacking interactions. In the molecular structure of the title compound, [NaNi(C18H18N2O4)(NO3)(CH3OH)], the Ni2+ ion has a slightly distorted square-planar coordination environment defined by two N and two O atoms which belong to a Schiff base ligand, viz. 6,6′-dimethoxy-2,2′-[ethane-1,2-diylbis(nitrilomethanylylidene)]diphenolate. Seven O atoms form the coordination environment of the Na+ ion: four from the Schiff base ligand, two from a bidentate chelating nitrate anion and one O atom from a coordinating methanol molecule. In the crystal, the bimetallic complexes are assembled into chains along the b-axis direction via weak C—H⋯O hydrogen-bond interactions. Neighbouring chains are in turn connected through bifurcated O—H⋯O hydrogen bonds that involve the coordinating methanol molecules and the nitrate anions, and through π–π stacking interactions between phenyl rings of neighbouring molecules.
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Affiliation(s)
- Olesia V Moroz
- Taras Shevchenko National University of Kyiv, Department of Chemistry, 64/13 Volodymyrska Street, Kyiv 01601, Ukraine
| | - Viktor A Trush
- Taras Shevchenko National University of Kyiv, Department of Chemistry, 64/13 Volodymyrska Street, Kyiv 01601, Ukraine
| | - Tatiana Yu Sliva
- Taras Shevchenko National University of Kyiv, Department of Chemistry, 64/13 Volodymyrska Street, Kyiv 01601, Ukraine
| | - Irina S Konovalova
- STC "Institute for Single Crystals", National Academy of Science of Ukraine, 60 Lenina Avenue, Kharkiv 61001, Ukraine
| | - Vladimir M Amirkhanov
- Taras Shevchenko National University of Kyiv, Department of Chemistry, 64/13 Volodymyrska Street, Kyiv 01601, Ukraine
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27
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Comanescu CC, Oliver AG. Crystal structure of catena-poly[[potassium-tri-μ-di-methyl-acetamide-κ(6) O:O] iodide]. Acta Crystallogr Sect E Struct Rep Online 2014; 70:196-8. [PMID: 25484650 PMCID: PMC4257214 DOI: 10.1107/s1600536814020005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Accepted: 09/04/2014] [Indexed: 12/04/2022]
Abstract
A one-dimensional chain formed by potassium bridged by μ2-O-dimethylacetamide is reported. This represents a small class of dimethylacetamide complexes with oxygen bridging two metal centers. The structure of catena-poly[[potassium-tri-μ-dimethylacetamide-κ6O:O] iodide], {[K(C4H9NO)3]I}n, at 120 K has trigonal (P-3) symmetry. The structure adopts a linear chain motif parallel to the crystallographic c axis. Two crystallographically independent K+ cations are present in the asymmetric unit located on threefold rotoinversion axes at [0, 0, 0] and [0, 0, 1/2] and are bridged by the O atoms of the acetamide moiety. This is an example of a rare μ2-bridging mode for dimethylacetamide O atoms. The iodide counter-ion resides on a threefold rotation axis in the channel formed by the [K(C4H9NO)]+ chains.
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Affiliation(s)
- Cezar-Catalin Comanescu
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556-5670, USA
| | - Allen G Oliver
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556-5670, USA
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28
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Das K, Datta A, Roy S, Clegg JK, Garribba E, Sinha C, Kara H. Doubly phenoxo-bridged M–Na (M=Cu(II), Ni(II)) complexes of tetradentate Schiff base: Structure, photoluminescence, EPR, electrochemical studies and DFT computation. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.04.032] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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29
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Azam M, Al-Resayes SI, Trzesowska-Kruszynska A, Kruszynski R, Verma A, Pati UK. Chiral anionic binuclear zinc complexes based on diaminocyclohexane ligand and their in vitro antiproliferative studies. INORG CHEM COMMUN 2014. [DOI: 10.1016/j.inoche.2014.05.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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30
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Chakraborty P, Jana A, Mohanta S. Surprising difference between two closely similar O(phenoxo)2O(ether)2 compartments as hosts for an aquated proton and a novel type of host–guest system. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.03.054] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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31
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Exploration of heterometallic systems containing silver(I) in acyclic Schiff base ligands: Finite and infinite self-assemblies as a result of silver(I)–carbon bond and silver(I)⋯silver(I) interaction. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.01.045] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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32
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Datta A, Das K, Massera C, Clegg JK, Sinha C, Huang JH, Garribba E. A mixed valent heterometallic CuII/NaI coordination polymer with sodium–phenyl bonds. Dalton Trans 2014; 43:5558-63. [DOI: 10.1039/c4dt00189c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mixed valent heterometallic CuII/NaI coordination polymer (1) is generated by the reaction of a Schiff base ligand, (6,6′-(1E,1′E)-(2-hydroxypropane-1,3-diyl)bis(azan-1-yl-1-ylidene)bis(methan-1-yl-1-ylidene)bis(2-methoxyphenol)) with copper(ii) acetate and sodium perchlorate.
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Affiliation(s)
- Amitabha Datta
- Department of Chemistry
- National Changhua University of Education
- Changhua 50058, Taiwan
| | - Kuheli Das
- Department of Chemistry
- Inorganic Chemistry Section
- Jadavpur University
- Kolkata – 700032, India
| | - Chiara Massera
- Dipartimento di Chimica
- Università degli Studi di Parma
- 43124 Parma, Italy
| | - Jack K. Clegg
- School of Chemistry and Molecular Biosciences
- The University of Queensland
- Brisbane St Lucia, Australia
| | - Chittaranjan Sinha
- Department of Chemistry
- Inorganic Chemistry Section
- Jadavpur University
- Kolkata – 700032, India
| | - Jui-Hsien Huang
- Department of Chemistry
- National Changhua University of Education
- Changhua 50058, Taiwan
| | - Eugenio Garribba
- Dipartimento di Chimica e Farmacia
- and Centro Interdisciplinare per lo Sviluppo della Ricerca Biotecnologica e per lo Studio della Biodiversità della Sardegna
- Università di Sassari
- I-07100 Sassari, Italy
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33
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Akine S, Nagumo H, Nabeshima T. Programmed multiple complexation for the creation of helical structures from acyclic phenol-bipyridine oligomer ligands. Dalton Trans 2013; 42:15974-86. [PMID: 23872673 DOI: 10.1039/c3dt51240a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Two new multidentate ligands, H3L(1) and H4L(2), possessing bipyridine-phenol repetitive units were designed so that the multi-metal complexation could produce a single-helical structure in a pre-programmed fashion. The ligands were synthesized by successive palladium-catalyzed coupling reactions. The complexation of H3L(1) with zinc(II) and nickel(II) acetate afforded [L(1)Zn2(OAc)] and [(L(1))2Ni4](OAc)2, respectively. Each of the ligand moieties in these complexes formed a one-turn single helix. The zinc(II) complex [L(1)Zn2(OAc)] underwent a helix compression-extension motion in solution. The complexation of the H3L(1) ligand with iron(III) chloride gave a dinuclear complex [(HL(1))2Fe2Cl2] with a non-helical dimeric structure. The longer ligand H4L(2) afforded a trinuclear complex [L(2)Zn3(OAc)2] with a 1.5-turn single-helical structure upon complexation with zinc(II) acetate. The reaction of the H4L(2) ligand with cobalt(II) acetate under aerobic conditions gave a mixed valence complex [L(2)Co3(OAc)3(OMe)], which had two trivalent and one divalent cobalt ions. The structural features of the trinuclear complexes significantly depended on the metals; [L(2)Co3(OAc)3(OMe)] had a helical pitch of 7.6 Å, which was almost twice that of [L(2)Zn3(OAc)2] (4.0 Å).
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Affiliation(s)
- Shigehisa Akine
- Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan.
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Biswas D, Chakrabarty PP, Saha S, Jana AD, Schollmeyer D, García-Granda S. Ligand mediated structural diversity and role of different weak interactions in molecular self-assembly of a series of copper(II)–sodium(I) Schiff-base heterometallic complexes. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2013.09.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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35
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Bhowmik P, Chatterjee S, Chattopadhyay S. Heterometallic inorganic–organic frameworks of sodium–nickel(vanen): Cation–π interaction, trigonal dodecahedral Na+ and unprecedented heptadentate coordination mode of vanen2−. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.07.023] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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36
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Bhattacharya S, Jana A, Mohanta S. Syntheses, crystal structures and spectroscopy of di/tri/tetranuclear discrete and co-crystalline copper(II)–NaI/ZnII/CdII complexes derived from a compartmental ligand: Inconsistency in the shifting of the copper(II) d–d band. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.06.041] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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37
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Bhattacharya S, Jana A, Mohanta S. Crystal structures of discrete, one-dimensional and cocrystalline copper(ii)–uranyl(vi) systems: the influence of the reactant ratio in the competition between hydrogen bonds and coordinate bonds. CrystEngComm 2013. [DOI: 10.1039/c3ce41625a] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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38
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BISWAS ARPITA, MONDAL SURAJ, MOHANTA SASANKASEKHAR. Syntheses, characterizations, and crystal structures of 3d–s/d10 metal complexes derived from two compartmental Schiff base ligands. J COORD CHEM 2012. [DOI: 10.1080/00958972.2012.749352] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- ARPITA BISWAS
- a Department of Chemistry , University of Calcutta , 92 A.P.C. Road, Kolkata , 700 009 , India
| | - SURAJ MONDAL
- a Department of Chemistry , University of Calcutta , 92 A.P.C. Road, Kolkata , 700 009 , India
| | - SASANKASEKHAR MOHANTA
- a Department of Chemistry , University of Calcutta , 92 A.P.C. Road, Kolkata , 700 009 , India
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39
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Maiti M, Sadhukhan D, Thakurta S, Sen S, Zangrando E, Butcher RJ, Deka RC, Mitra S. Pseudohalide‐Controlled Assemblies of Copper–Schiff Base Complexes with an Encapsulated Sodium Ion: Synthesis, Crystal Structure, and Computational Studies. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200916] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Monami Maiti
- Department of Chemistry, Jadavpur University, Raja S. C. Mullick Road, Kolkata 700032, India, Fax: +91‐33‐2414‐6414, http://www.jaduniv.edu.in/profile.php?uid = 19
| | - Dipali Sadhukhan
- Department of Chemistry, Jadavpur University, Raja S. C. Mullick Road, Kolkata 700032, India, Fax: +91‐33‐2414‐6414, http://www.jaduniv.edu.in/profile.php?uid = 19
| | - Santarupa Thakurta
- Department of Chemistry, Jadavpur University, Raja S. C. Mullick Road, Kolkata 700032, India, Fax: +91‐33‐2414‐6414, http://www.jaduniv.edu.in/profile.php?uid = 19
| | - Shubhatam Sen
- Department of Chemistry, Jadavpur University, Raja S. C. Mullick Road, Kolkata 700032, India, Fax: +91‐33‐2414‐6414, http://www.jaduniv.edu.in/profile.php?uid = 19
| | - Ennio Zangrando
- Department of Chemical and Pharmaceutical Sciences, Via Licio Giorgieri 1, 34127 Trieste, Italy
| | - Ray J. Butcher
- Department of Chemistry, Howard University, 2400 Sixth Street NW, Washington, DC 20059, USA
| | - Ramesh C. Deka
- Department of Chemical Sciences, Tezpur University, Tezpur 784028, Assam, India
| | - Samiran Mitra
- Department of Chemistry, Jadavpur University, Raja S. C. Mullick Road, Kolkata 700032, India, Fax: +91‐33‐2414‐6414, http://www.jaduniv.edu.in/profile.php?uid = 19
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43
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Zhang D, Zhao Z. Synthesis and crystal structure of a new tetradecker complex: Tetra(μ4-N,N′-Ethylen-bis(3-Methoxysalicylideneamine)-bis(μ2-perchlorato-O,O′)-tetranickel(II)-tripotassium perchlorate. RUSS J COORD CHEM+ 2011. [DOI: 10.1134/s1070328411110145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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44
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Synthesis and characterisation of ammonium mediated assembly of two neutral nickel(II) Schiff base fragments. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.08.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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45
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46
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Sui Y, Hu RH, Liu DS, Wu Q. Adjustment of the structures and biological activities by the ratio of NiL to RE for two sets of Schiff Base complexes [(NiL)nRE] (n=1 or 2; RE=La or Ce). INORG CHEM COMMUN 2011. [DOI: 10.1016/j.inoche.2010.12.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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47
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Gong X, Ge YY, Fang M, Gu ZG, Zheng SR, Li WS, Hu SJ, Li SB, Cai YP. Construction of four 3d-4d/4d complexes based on salen-type schiff base ligands. CrystEngComm 2011. [DOI: 10.1039/c1ce05525a] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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48
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Mousavi M, Béreau V, Costes JP, Duhayon C, Sutter JP. Oligomeric and polymeric organizations of potassium salts with compartmental Schiff-base complexes as ligands. CrystEngComm 2011. [DOI: 10.1039/c1ce05127j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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49
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Trinuclear and tetranuclear adduct formation between sodium perchlorate and copper(II) complexes of salicylaldimine type ligands: Structural characterization and theoretical investigation. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2010.11.005] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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50
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Mustapha A, Reglinski J, Kennedy AR. Metal complexes as potential ligands: The deprotonation of aminephenolate metal complexes. INORG CHEM COMMUN 2010. [DOI: 10.1016/j.inoche.2010.01.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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