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Simões TRG, Marinho MV, Pasán J, Stumpf HO, Moliner N, Lloret F, Julve M. On the magneto-structural role of the coordinating anion in oxamato-bridged copper(ii) derivatives. Dalton Trans 2019; 48:10260-10274. [DOI: 10.1039/c9dt01277j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Herein we present the self-assembly of the [Cu(opba)]2− and [Cu(dmphen)]2+ building blocks in the presence of thiocyanate (1), chloride (2), bromide (3) and dicyanamide (4) anions.
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Affiliation(s)
- Tatiana R. G. Simões
- Departamento de Química
- Universidade Federal do Paraná
- Centro Politécnico
- Curitiba-PR
- Brazil
| | | | - Jorge Pasán
- Laboratorio de Rayos X y Materiales Moleculares (MATMOL)
- Departamento de Física
- Facultad de Ciencias (Sección Física)
- Universidad de La Laguna
- Edifício de Física y Matemáticas
| | - Humberto O. Stumpf
- Departamento de Química
- ICEX
- Universidade Federal de Minas Gerais
- BeloHorizonte
- Brazil
| | - Nicolás Moliner
- Departament de Química Inorgànica/Instituto de Ciencia Molecular
- Facultat de Química de la Universitat de València
- 46980-Paterna
- Spain
| | - Francesc Lloret
- Departament de Química Inorgànica/Instituto de Ciencia Molecular
- Facultat de Química de la Universitat de València
- 46980-Paterna
- Spain
| | - Miguel Julve
- Departament de Química Inorgànica/Instituto de Ciencia Molecular
- Facultat de Química de la Universitat de València
- 46980-Paterna
- Spain
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2
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Reis NV, Barros WP, Oliveira WXC, Pereira CLM, Rocha WR, Pinheiro CB, Lloret F, Julve M, Stumpf HO. Crystal Structure and Magnetic Properties of an Oxamato-Bridged Heterobimetallic Tetranuclear [NiII
CuII
]2
Complex of the Rack Type. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700821] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Natalia V. Reis
- Departamento de Química; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627 31270-901 Pampulha BH, MG Brazil
| | - Wdeson P. Barros
- Departamento de Química; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627 31270-901 Pampulha BH, MG Brazil
- Instituto de Química; Universidade Estadual de Campinas; Caixa Postal 6154 13083-970 Campinas SP Brazil
| | - Willian X. C. Oliveira
- Departamento de Química; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627 31270-901 Pampulha BH, MG Brazil
| | - Cynthia L. M. Pereira
- Departamento de Química; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627 31270-901 Pampulha BH, MG Brazil
| | - Willian R. Rocha
- Departamento de Química; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627 31270-901 Pampulha BH, MG Brazil
| | - Carlos B. Pinheiro
- Departamento de Física; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627 31270-901 Pampulha BH, MG Brazil
| | - Francesc Lloret
- Departament de Química Inorgânica; Instituto de Ciencia Molecular (ICMol); Universitat de Valencia; C / Catedrático José Beltrán 2 46980 Paterna, Valencia Spain
| | - Miguel Julve
- Departament de Química Inorgânica; Instituto de Ciencia Molecular (ICMol); Universitat de Valencia; C / Catedrático José Beltrán 2 46980 Paterna, Valencia Spain
| | - Humberto O. Stumpf
- Departamento de Química; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627 31270-901 Pampulha BH, MG Brazil
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3
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Li SX, Luo P, Jiang YM. Copper complexes with 4(3H)-quinazolinone: Thermal gravimetric analysis and anticancer activity of [Cu(L)2(H2O)2(NO3)2], [Cu(L–)(NO3)]
n
, and [Cu(L)2(H2O)2(Cl)2]. RUSS J COORD CHEM+ 2017. [DOI: 10.1134/s1070328417040042] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Adhikary A, Sheikh JA, Konar AD, Konar S. Synthesis, crystal structure, magnetic study and magneto-structural correlation of three Cu(ii) complexes formed via pyridine bis(hydrazone) based ligand. RSC Adv 2014. [DOI: 10.1039/c3ra45928d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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5
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Liao CY, Chen CW, Lin HH, Cheng SC, Lee CJ, Wei HH. Structure and Magnetic Properties of Mononuclear Copper(II) Complexes with 2,2-Bipyrimidine, 2,3-Bis(2-pyridyl)pyrazine, and 4-Terpyridone Based Ligands. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200500099] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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6
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Marinho MV, Simões TRG, Ribeiro MA, Pereira CLM, Machado FC, Pinheiro CB, Stumpf HO, Cano J, Lloret F, Julve M. A Two-Dimensional Oxamate- and Oxalate-Bridged CuIIMnII Motif: Crystal Structure and Magnetic Properties of (Bu4N)2[Mn2{Cu(opba)}2ox]. Inorg Chem 2013; 52:8812-9. [DOI: 10.1021/ic401038c] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Maria V. Marinho
- Departament de Química
Inorgànica/Instituto de Ciencia Molecular, Facultat
de Química de la Universitat de València, C/Catedrático José Beltrán 2, 46980-Paterna
(València), Spain
| | - Tatiana R. G. Simões
- Departamento de
Química, ICEX, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo
Horizonte-MG 31270-901, Brazil
| | - Marcos A. Ribeiro
- Departamento de
Química, ICEX, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo
Horizonte-MG 31270-901, Brazil
- Departamento de Física, ICEX, Universidade Federal de Minas Gerais, av. Antônio
Carlos 6627, Belo Horizonte-MG 31270-901, Brazil
| | - Cynthia L. M. Pereira
- Departamento de
Química, ICEX, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo
Horizonte-MG 31270-901, Brazil
| | - Flávia C. Machado
- Departamento de
Química, ICE, Universidade Federal de Juiz de Fora, 36036-330 Juiz de Fora, Minas Gerais,
Brazil
| | - Carlos B. Pinheiro
- Departamento de Física, ICEX, Universidade Federal de Minas Gerais, av. Antônio
Carlos 6627, Belo Horizonte-MG 31270-901, Brazil
| | - Humberto O. Stumpf
- Departamento de
Química, ICEX, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo
Horizonte-MG 31270-901, Brazil
| | - Joan Cano
- Departament de Química
Inorgànica/Instituto de Ciencia Molecular, Facultat
de Química de la Universitat de València, C/Catedrático José Beltrán 2, 46980-Paterna
(València), Spain
- Fundació
General de La
Universitat de Valencia (FGUV), Universitat de València, 46980 Paterna (València), Spain
| | - Francesc Lloret
- Departament de Química
Inorgànica/Instituto de Ciencia Molecular, Facultat
de Química de la Universitat de València, C/Catedrático José Beltrán 2, 46980-Paterna
(València), Spain
| | - Miguel Julve
- Departament de Química
Inorgànica/Instituto de Ciencia Molecular, Facultat
de Química de la Universitat de València, C/Catedrático José Beltrán 2, 46980-Paterna
(València), Spain
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7
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Simões TRG, Mambrini RV, Reis DO, Marinho MV, Ribeiro MA, Pinheiro CB, Ferrando-Soria J, Déniz M, Ruiz-Pérez C, Cangussu D, Stumpf HO, Lloret F, Julve M. Copper(ii) assembling with bis(2-pyridylcarbonyl)amidate and N,N′-2,2-phenylenebis(oxamate). Dalton Trans 2013; 42:5778-95. [DOI: 10.1039/c3dt32949f] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Abdulmalic MA, Aliabadi A, Petr A, Krupskaya Y, Kataev V, Büchner B, Hahn T, Kortus J, Rüffer T. An interplay between the spin density distribution and magnetic superexchange interactions: a case study of mononuclear [nBu4N]2[Cu(opooMe)] and novel asymmetric trinuclear [Cu3(opooMe)(pmdta)2](NO3)2·3MeCN. Dalton Trans 2012; 41:14657-70. [PMID: 23059964 DOI: 10.1039/c2dt31802d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Mohammad A Abdulmalic
- Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Strasse der Nationen 62, D-09111 Chemnitz, Germany
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9
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Dey S, Sarkar S, Mukherjee T, Mondal B, Zangrando E, Sutter J, Chattopadhyay P. An oxamato bridged trinuclear copper(II) complex: Synthesis, crystal structure, reactivity, DNA binding study and magnetic properties. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.06.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Wang QL, Liao DZ, Yan SP, Jiang ZH, Cheng P. Synthesis, Structure and Magnetic Properties of Two New Homotrinuclear Bis(oxamato) Copper (II) Complexes. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.20020201117] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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11
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Hahn FE, Schröder H, Pape T, Hupka F. Zinc(II), Copper(II), and Nickel(II) Complexes of Bis(tripodal) Diamide Ligands - Reversible Switching of the Amide Coordination Mode upon Deprotonation. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.200901145] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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12
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Rüffer T, Bräuer B, Eya’ane Meva F, Sorace L. Synthesis, characterization, and magnetic properties of new binuclear CuIICuII bis(oxamato) complexes. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2008.05.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Pardo E, Ruiz-García R, Cano J, Ottenwaelder X, Lescouëzec R, Journaux Y, Lloret F, Julve M. Ligand design for multidimensional magnetic materials: a metallosupramolecular perspective. Dalton Trans 2008:2780-805. [DOI: 10.1039/b801222a] [Citation(s) in RCA: 234] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Synthesis, characterization, and magnetic properties of new homotrinuclear bis(oxamato) copper(II) complexes with an asymmetric central N,N′-bridge. Inorganica Chim Acta 2007. [DOI: 10.1016/j.ica.2007.05.043] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Rüffer T, Bräuer B, Powell AK, Hewitt I, Salvan G. Synthesis, characterization and magnetic properties of new homotrinuclear copper(II) complexes. Inorganica Chim Acta 2007. [DOI: 10.1016/j.ica.2007.03.037] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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17
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Tao R, Zang S, Wang Q, Cheng Y, Niu J, Liao D. Synthesis, crystal structure, magnetic and spectroscopic properties of {[Cu(oxbe)(py)]2Ni(py)2}·2Dmf complex of dissymmetrical oxamidate. J COORD CHEM 2006. [DOI: 10.1080/00958970412331272377] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Ruojie Tao
- a Chemistry and Chemical Engineering College of Henan University , Kaifeng 475001, P. R. China
| | - Shuangquan Zang
- a Chemistry and Chemical Engineering College of Henan University , Kaifeng 475001, P. R. China
| | - Qinglun Wang
- b Department of Chemistry , Nankai University , Tianjin 300071, P. R. China
| | - Yanxiang Cheng
- c Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022, P. R. China
| | - Jingyang Niu
- a Chemistry and Chemical Engineering College of Henan University , Kaifeng 475001, P. R. China
| | - Daizheng Liao
- b Department of Chemistry , Nankai University , Tianjin 300071, P. R. China
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18
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Sun YM, Liu CB, Qi ZN, Zhang DJ. Theoretical study on magneto-structural correlation in trinuclear copper(II) complexes with the oxamato bridge. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.theochem.2004.11.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Aromí G, Ribas J, Gamez P, Roubeau O, Kooijman H, Spek AL, Teat S, MacLean E, Stoeckli-Evans H, Reedijk J. Aggregation of [Cu${{\bf }{{{\bf II}\hfill \atop \bf 4\hfill}}}$] Building Blocks into [Cu${{\bf }{{{\bf II}\hfill \atop \bf 8\hfill}}}$] Clusters or a [Cu${{\bf }{{{\bf II}\hfill \atop \bf 4\hfill}}}$]∞Chain through Subtle Chemical Control. Chemistry 2004; 10:6476-88. [PMID: 15540260 DOI: 10.1002/chem.200400671] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Coordination complexes of the ligand H3L [1,3-bis(3-oxo-3-phenylpropionyl)-2-hydroxy-5-methylbenzene] with Cu(II) are reported. Clusters showing various nuclearities or modes of supramolecular organization have been prepared by slightly changing the reaction conditions and have been crystallographically characterized. The reaction of H3L with one equivalent of Cu(OAc)2 in DMF yields the dinuclear complex [Cu2(HL)2(dmf)2] (1). Reaction in MeOH of H3L with an increased amount of metal, in the form of Cu(NO3)2, and excess strong base (nBu4NOH) affords the cluster [Cu8(L)2(OMe)8(NO3)2] (2). Complex 2 is a dimer of two linear [Cu4] arrays bridged by methoxide ligands, where the polynucleating ligand is fully deprotonated. The [Cu4]2 clusters are linked to each other by NO3- bridges to form one-dimensional coordination polymers. The link between [Cu8] units and their relative spatial positioning can be modified by changing the anion of the Cu(II) salt, as demonstrated by the synthesis of the cluster polymers [Cu8(L)2(OMe)8Cl2] (3) and [Cu8(L)(OMe)7.86Br2.14] (4), where only NO3- has been replaced by Cl- or Br-, respectively. Similarly, when ClO4- is used, compound [Cu8(L)2(OMe)8(ClO4)2(MeOH)4] (5) can be isolated. It contains independent [Cu8] units. A slight change in the stoichiometry of the reaction leading to 2 affords the related complex catena-[Cu4(L)(OMe)3(NO3)2(H2O)0.36] (6). This polymer contains essentially the same [Cu4] moiety as 2, albeit organized in a completely different arrangement. Each [Cu4] unit in 6 is linked by OMe- ligands to two such equivalent groups to form an infinite chain. Magnetic susceptibility measurements reveal weak antiferromagnetic exchange between Cu(II) centers in 1 (J = -0.73 cm(-1)) and strong antiferromagnetic coupling within [Cu4] chains in 2, 5, and 6 (most negative J values of -113.8 and -177.3 cm(-1) for 2 and 6, respectively).
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Affiliation(s)
- Guillem Aromí
- Departament de Química Inorgànica, Universitat de Barcelona, Diagonal 647, 08028 Barcelona, Spain.
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20
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Synthesis, crystal structure and properties of the zinc complexes with unsymmetrical tridentate ligands. J Mol Struct 2003. [DOI: 10.1016/s0022-2860(03)00240-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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21
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Tercero J, Diaz C, Ribas J, Maestro M, Mahía J, Stoeckli-Evans H. Oxamato-bridged trinuclear NiIICuIINiII complexes: a new (NiIICuIINiII)2 hexanuclear complex and supramolecular structures. Characterization and magnetic properties. Inorg Chem 2003; 42:3366-73. [PMID: 12739979 DOI: 10.1021/ic026264z] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Eight oxamato-bridged heterotrinuclear Ni(II)Cu(II)Ni(II) complexes of formula ([Ni(H(2)O)(dpt)](2)(mu-Cu(H(2)O)(opba)))(ClO(4))2 (1), ([Ni(H(2)O)(dien)](2)(mu-Cu(pba)))(ClO(4))(2).6H(2)O (2), ([Ni(H(2)O)(Medpt)](2)(mu-Cu(OHpba)))(ClO(4))(2).4H(2)O (3), ([Ni(H(2)O)(dien)](2)(mu-Cu(Me(2)pba)))(ClO(4))(2).2.5H(2)O (4), ([Ni(H(2)O)(dpt)](2)(mu-Cu(Me(2)pba)))(ClO(4))(2).2H(2)O (5), ([Ni(H(2)O)(dien)](2)(mu-Cu(OHpba)))(ClO(4))(2).4H(2)O (6), ([Ni(2)(dpt)(2)(mu-Cu(H(2)O)(pba))](2)(mu-N(3))(2))Na(2)(ClO(4))(4).6H(2)O (7), and ([Cu(H(2)O)(2)(dpt)Ni(2)(H(2)O)(dpt)(2)](mu-H(2)Me(2)pba(2-)))(ClO(4))(4).3H(2)O (8) in which opba = o-phenylenbis(oxamato), pba = 1,3-propylenebis(oxamato), OHpba = 2-hydroxy-1,3-propylenebis(oxamato), Me(2)pba = 2,2-dimethyl-1,3-propylenbis(oxamato), dpt = 3,3'-diaminodipropylamine, dien = 2,2'-diaminodiethylamine, and Medpt = 3,3'-diamino-N-methyldipropylamine were synthesized and characterized. The crystal structures of 1, 7, and 8 were solved. For complex 1, the trinuclear entities are linked by hydrogen bonds forming a one-dimensional system, and for complex 8, the presence of van der Waals interactions gives a one-dimensional system, too. For complex 7, the trinuclear entities are self-assembled by azido ligands, given a hexanuclear system; each of these hexanuclear entities are self-assembled through two [Na(O)(3)(H(2)O)(3)] octahedral-sharing one-edge entities, given a one-dimensional system. The magnetic behavior of complexes 2-7 was investigated by variable-temperature magnetic susceptibility measurements. Complexes 2-6 exhibit the minimum characteristic of this kind of polymetallic species with an irregular spin state structure. The Jvalue through the oxamato bridge varied between -88 cm(-1) (for 6) and -111.2 cm(-1) (for 5). For complex 7, the values obtained were J(1) = -101.7 cm(-1) (through the oxamato ligand) and J(2) = -3.2 cm(-1) (through the azido ligand).
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Affiliation(s)
- Javier Tercero
- Departament de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028-Barcelona, Spain
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Wang LY, Igarashi S, Yukawa Y, Hashimoto T, Shimizu K, Hoshino Y, Harrison A, Aromí G, Winpenny REP. Synthesis, Structure, and Preliminary Magnetic Studies of a Cluster Polymer with a Hexacopper(II) Barrel Portion. CHEM LETT 2003. [DOI: 10.1246/cl.2003.202] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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23
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Wang LY, Igarashi S, Yukawa Y, Hoshino Y, Roubeau O, Aromí G, Winpenny REP. Synthesis, structure, and preliminary magnetic studies of unprecedented hexacopper(ii) barrel clusters with spin ground state S = 3. Dalton Trans 2003. [DOI: 10.1039/b212494g] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Tercero J, Diaz C, Ribas J, Ruiz E, Mahía J, Maestro M. New oxamidato-bridged Cu(II)-Ni(II) complexes: supramolecular structures with thiocyanate ligands and hydrogen bonds. Magnetostructural studies: DFT calculations. Inorg Chem 2002; 41:6780-9. [PMID: 12470075 DOI: 10.1021/ic025910r] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Four new supramolecular compounds of Cu(II)-Ni(II) have been synthesized and characterized: [Cu(Me(2)oxpn)Ni(mu-NCS)(H(2)O)(tmen)](2)(ClO(4))(2) (1), [Cu(Me(2)oxpn)Ni(mu-NCS)(H(2)O)(tmen)](2)(PF(6))(2) (2), [Cu(oxpn)Ni(mu-NCS)(NCS) (tmen)](n) (3), and [Cu(Me(2)oxpn)Ni(mu-NCS)(NCS)(tmen)](n) (4), where oxpn = N,N'-bis(3-aminopropyl)oxamidate, Me(2)oxpn = N,N'-bis(3-amino-2,2'-dimethylpropyl)oxamidate, and tmen = N,N,N',N'-tetramethylethylenediamine. Their crystal structures were solved. Complexes 1 and 2 have the same tetranuclear cationic part but a different counteranion. The cationic part consists of two [Cu(Me(2)oxpn)Ni] moieties linked by SCN(-) bridged ligands and intra-tetranuclear hydrogen bonds. In the case of complex 3, a two-dimensional system was built, the thiocyanate ligand linking the dinuclear units gives a chain, and the chains are linked together by hydrogen bonds; intrachain hydrogen bonds are also present. For complex 4, the thiocyanate ligands produce intermolecular linkages between the dinuclear entities, giving a one-dimensional system; intrachain hydrogen bonds are also present. The magnetic properties of the four complexes were studied by susceptibility measurements vs temperature. DFT calculations were made to study the contribution of the SCN(-) and hydrogen bond bridges in the magnetic coupling.
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Affiliation(s)
- Javier Tercero
- Departament de Química Inorgànica, Universitat de Barcelona, Martí i Franquès, 1-11, 08028 Barcelona, Spain
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Tercero J, Diaz C, Ribas J, Mahía J, Maestro MA. New oxamato-bridged trinuclear Cu(II)-Cu(II)-Cu(II) complexes with hydrogen-bond supramolecular structures: synthesis and magneto-structural studies. Inorg Chem 2002; 41:5373-81. [PMID: 12377030 DOI: 10.1021/ic011081i] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Three oxamato-bridged copper(II) complexes of formula [(Cu(H(2)O)(tmen)Cu(tmen))(mu-Cu(H(2)O)(Me(2)pba))](n)((PF(6))(2))(n).2nH(2)O (1), [(Cu(H(2)O)(tmen)Cu(NCS)(tmen))(mu-Cu(H(2)O)(Me(2)pba))](2)(ClO(4))(2).4H(2)O (2), and [(Cu(H(2)O)(tmen)Cu(NCS)(tmen))(mu-Cu(H(2)O)(Me(2)pba))](2)(PF(6))(2).4H(2)O (3), where Me(2)pba = 2,2-dimethyl-1,3-propylenebis(oxamato) and tmen = N,N,N',N'-tetramethylethylenediamine, have been synthesized and characterized. Their crystal structures were solved. Complex 1 crystallizes in the monoclinic system, space group P2(1), with a = 15.8364(3) A, b =8.4592(2) A, c = 15.952 A, beta = 101.9070(10) degrees, and Z = 2. Complex 2 crystallizes in the monoclinic system, space group P2(1)/c, with a = 6.69530(10) A, b = 18.2441(3) A, c = 31.6127(5) A, beta = 90.1230(10) degrees, and Z = 4. Complex 3 crystallizes in the monoclinic system, space group P2(1)/c, with a = 6.68970(10) A, b = 18.150 A, c = 32.1949(4) A, beta = 90.0820(10) degrees, and Z = 4. The three complexes have a central core in common: a trinuclear Cu(II) complex with the two terminal Cu(II) ions blocked by N,N,N',N'-tetramethylethylenediamine. The structure of complex 1 consists of trinuclear cationic entities connected by hydrogen bonds to produce a supramolecular one-dimensional array. The structure of complexes 2 and 3 consist of trinuclear cationic entities linked by pairs by hydrogen bonds between the water molecule of the central Cu(II) and one oxygen atom of the oxamato ligand of the neighboring entity, forming a hexanuclear complex. The magnetic properties of the three complexes were studied by susceptibility vs temperature measurement. For complexes 1-3 the fit was made by the irreducible tensor operator (ITO). The values obtained were J(1) = -386.48 cm(-1) and J(2) = 1.94 cm(-1) for 1, J(1) = -125.77 cm(-1) and J(2) = 0.85 cm(-1) for 2, and J(1) = -135.50 cm(-1) and J(2) = 0.94 cm(-1) for 3. In complex 1, the coordination polyhedron of the terminal Cu(II) atoms can be considered as square pyramidal; the apical positions are filled by the oxygen atom from a water molecule in the former and a F atom of the hexafluorophosphate anion in the latter showing a quasi-planar [Cu(CuMe(2)pba)Cu] network. For complexes 2 and 3, the square pyramidal environment of the terminal Cu(II) ions was strongly modified. To our knowledge, this is the first time that the longest distance (apical) in complexes with oxamato derivatives and bidentate amines as blocking ligands has been reported in one of the oxamato arms. The great difference in J(1) values between 1 and the other two complexes is interpreted as an orbital reversal of the magnetic orbitals of the terminal Cu(II) ions in 2 and 3.
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Affiliation(s)
- Javier Tercero
- Departament de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
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Aromí G, Gamez P, Roubeau O, Kooijman H, Spek AL, Driessen WL, Reedijk J. Ligand-Templated Four-Metal Chains Dimerize into a Unique [CuII8] Cluster. Angew Chem Int Ed Engl 2002. [DOI: 10.1002/1521-3757(20020402)114:7<1216::aid-ange1216>3.0.co;2-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Aromí G, Gamez P, Roubeau O, Kooijman H, Spek AL, Driessen WL, Reedijk J. Ligand-templated four-metal chains dimerize into a unique [Cu(II)(8)] cluster. Angew Chem Int Ed Engl 2002; 41:1168-70. [PMID: 12491248 DOI: 10.1002/1521-3773(20020402)41:7<1168::aid-anie1168>3.0.co;2-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Guillem Aromí
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, The Netherlands
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