101
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Hotze ACG, Bacac M, Velders AH, Jansen BAJ, Kooijman H, Spek AL, Haasnoot JG, Reedijk J. New cytotoxic and water-soluble bis(2-phenylazopyridine)ruthenium(II) complexes. J Med Chem 2003; 46:1743-50. [PMID: 12699392 DOI: 10.1021/jm021110e] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
New water-soluble bis(2-phenylazopyridine)ruthenium(II) complexes, all derivatives of the highly cytotoxic alpha-[Ru(azpy)(2)Cl(2)] (alpha denoting the coordinating pairs Cl, N(py), and N(azo) as cis, trans, cis, respectively) have been developed. The compounds 1,1-cyclobutanedicarboxylatobis(2-phenylazopyridine)ruthenium(II), alpha-[Ru(azpy)(2)(cbdca-O,O')] (1), oxalatobis(2-phenylazopyridine)ruthenium(II), alpha-[Ru(azpy)(2)(ox)] (2), and malonatobis(2-phenylazopyridine)ruthenium(II), alpha-[Ru(azpy)(2)(mal)] (3), have been synthesized and fully characterized. X-ray analyses of 1 and 2 are reported, and compound 1 is the first example in which the cbdca ligand is coordinated to a ruthenium center. The cytotoxicity of this series of water-soluble bis(2-phenylazopyridine) complexes has been determined in A2780 human ovarian carcinoma and A2780cisR, the corresponding cisplatin-resistant cell line. For comparison reasons, the cytotoxicity of the complexes alpha-[Ru(azpy)(2)Cl(2)], alpha-[Ru(azpy)(2)(NO(3))(2)], beta-[Ru(azpy)(2)Cl(2)] (beta indicating the coordinating pairs Cl, N(py), and N(azo) as cis, cis, cis, respectively), and beta-[Ru(azpy)(2)(NO(3))(2)] have been determined in this cell line. All the bis(2-phenylazopyridine)ruthenium(II) compounds display a promising cytotoxicity in the A2780 cell line (IC(50) = 0.9-10 microM), with an activity comparable to that of cisplatin and even higher than the activity of carboplatin. Interestingly, the IC(50) values of this series of ruthenium compounds (except the beta isomeric compounds) are similar in the cisplatin-resistant A2780cisR cell line compared to the normal cell line A2780, suggesting that the activity of these compounds might not be influenced by the multifactorial resistance mechanism that affect platinum anticancer agents.
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102
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Aromí G, Gamez P, Kooijman H, Spek A, Driessen W, Reedijk J. Two New Dinuclear Sterically Crowded CuII Complexes as Catalyst Precursors for the Oxidative Coupling of 2,6-Dimethylphenol. Eur J Inorg Chem 2003. [DOI: 10.1002/ejic.200390181] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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103
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van der Vlugt JI, Sablong R, Mills AM, Kooijman H, Spek AL, Meetsma A, Vogt D. Coordination chemistry and X-ray studies with novel sterically constrained diphosphonite ligands. Dalton Trans 2003. [DOI: 10.1039/b311328k] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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104
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van Albada GA, Mohamadou A, Reedijk J, Kooijman H, Spek AL. Self-assembly of a Noveltrans-Oxamidato-bridged Copper(II) Compound with a Neutral Oxamidate-Ester Ligand as a Spacer. Crystal Structure, Spectroscopy, and Magnetism of a Chain of Dinuclear Units. Z Anorg Allg Chem 2003. [DOI: 10.1002/zaac.200300207] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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105
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Mohamadou A, van Albada GA, Kooijman H, Wieczorek B, Spek AL, Reedijk J. The binding mode of the ambidentate ligand dicyanamide to transition metal ions can be tuned by bisimidazoline ligands with H-bonding donor property at the rear side of the ligandElectronic supplementary information (ESI) available: atomic displacement plot of structure 2. See http://www.rsc.org/suppdata/nj/b2/b212059c/. NEW J CHEM 2003. [DOI: 10.1039/b212059c] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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106
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Stassen AF, Kooijman H, Spek AL, de Jongh LJ, Haasnoot JG, Reedijk J. Strongly isolated ferromagnetic layers in poly-trans-mu-dichloro- and poly-trans-mu-dibromobis(1-(2-chloroethyl)-tetrazole-N4)copper(II) complexes. Inorg Chem 2002; 41:6468-73. [PMID: 12444792 DOI: 10.1021/ic0257470] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Two new isostructural compounds, dichlorobis(1-(2-chloroethyl)tetrazole)copper(II) (1) and dibromobis(1-(2-chloroethyl)tetrazole)copper(II) (2), have been prepared. The synthesis, characterization, and spectral and magnetic properties as well as the crystal and molecular structures of 1 and 2 have been studied. Both complexes form two-dimensional, distorted square grid planes of copper and halides, distinctly separated by layers of tetrazole ligands. The differential (ac) magnetic susceptibility, chi = (deltaM/deltaH)(T), and magnetization M(H) of both complexes have been studied as a function of temperature and field. The compounds possess a ferromagnetic interaction within the isolated copper-halide layers (J/k(B) = 8.0 K, J/k(B) = 10.2 K, respectively, for the chloride and the bromide, and T(c) = 4.75 K, T(c) = 8.01 K). The magnetic coupling J'/k(B) between the different layers is found to be very weak (|J'/J| <or= 2 x 10(-2)).
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107
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Višnjevac A, Tušek-Božić L, Majerić-Elenkov M, Hameršak Z, Kooijman H, De Clercq E, Kojić-Prodić B. Synthesis, structural characterisation and biological activity of Zn(II) and Pd(II) complexes of 3-substituted 5-(2′-pyridyl)-1,4-benzodiazepin-2-one derivatives. Polyhedron 2002. [DOI: 10.1016/s0277-5387(02)01251-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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108
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van Leeuwen FW, Beijleveld H, Kooijman H, Spek AL, Verboom W, Reinhoudt DN. Cation control on the synthesis of p-t-butylthiacalix[4](bis)crown ethers. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(02)02425-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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109
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Hoogenraad M, Kooijman H, Spek A, Bouwman E, Haasnoot J, Reedijk J. Manganese Oxidation Catalysts with 2-(2′-Hydroxyphenyl)oxazoline Ligands: Catalyst Intermediates and Degradation Products − Crystal Structure of Bis[{2-(2′-oxazolinyl)phenolato}bis(1-methylimidazole)manganese(III)] Perchlorate. Eur J Inorg Chem 2002. [DOI: 10.1002/1099-0682(200211)2002:11<2897::aid-ejic2897>3.0.co;2-s] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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110
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Youngme S, van Albada G, Kooijman H, Roubeau O, Somjitsripunya W, Spek A, Pakawatchai C, Reedijk J. A Unique Dinuclear CuII Compound with Two Phase Transitions Clearly Visible from Thermal and Magnetic Behaviour; Synthesis, Magnetism and X-ray Structures at Three Temperatures of Bis(di-2-pyridylamine)bis(μ-hydroxo)bis(μ-perchlorato-O,O)dicopper(II). Eur J Inorg Chem 2002. [DOI: 10.1002/1099-0682(200209)2002:9<2367::aid-ejic2367>3.0.co;2-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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111
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van der Drift R, Sprengers J, Bouwman E, Mul W, Kooijman H, Spek A, Drent E. Ruthenium-Catalyzed Isomerization of Allylic Alcohols: Oxidation State Determines Resistance Against Diene Inhibition. Eur J Inorg Chem 2002. [DOI: 10.1002/1099-0682(200208)2002:8<2147::aid-ejic2147>3.0.co;2-l] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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112
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Aromí G, Gamez P, Roubeau O, Berzal PC, Kooijman H, Spek AL, Driessen WL, Reedijk J. A solvent-controlled switch of manganese complex assemblies with a beta-diketonate-based ligand. Inorg Chem 2002; 41:3673-83. [PMID: 12099871 DOI: 10.1021/ic0200491] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The coordination properties of the new polynucleating ligand H(3)L1 (1,3-bis(3-oxo-3-phenylpropionyl)-2-hydroxy-5-methylbenzene) with Mn(II/III) are described. Depending on the solvent used, the reaction of H(3)L1 with Mn(OAc)(2) yields either of the two new multinuclear assemblies [Mn(2)(HL1)(2)(py)(4)] (1) and [Mn(3)(HL1)(3)] (2), as revealed by X-ray crystallography. The structure of 2 is remarkable in that it shows a unique asymmetric triple-stranded helicate. Complexes 1 and 2 can be interconverted by controlling the solvent of the reaction system, and therefore, this ensemble constitutes an interesting externally addressable switch. In the presence of Mn(III)/pyridine, partial degradation of H(3)L1 occurs via oxidative cleavage, and the new complex [Mn(2)(L2)(2)(py)(4)] (3) is formed. The crystal structure of this complex has shown the fully deprotonated form of the new donor H(3)L2 (3-(3-oxo-3-phenylpropionyl)-5-methylsalicylic acid). From the same reaction, the Mn(II) complex 1 is also obtained. A rational synthesis of H(3)L2 is reported, and this has been used to prepare 3 in high yields, directly from its components. Variable-temperature magnetic susceptibility (chi(m)) measurements were performed on complexes 1-3 under a magnetic field of 1 kG. The data for each complex were fit to the appropriate chi(m) vs T theoretical equation, respectively. In 1, the Mn(II) ions are uncoupled, with g = 2.01. The data from 2 were fit by assuming the presence of an exchange coupled Mn(II)...Mn(II) pair next to a magnetically isolated Mn(II) center. The fit gave J = -2.75 cm(-1), g(12) = 1.97, and g(3) = 1.92, respectively. In 3, two models fit the experimental data. In the most satisfactory, the Mn(III) ions are coupled antiferromagnetically with J = -1.48 cm(-1) and g = 1.98 and a term for weak ferromagnetic intermolecular exchange is included with zJ' = 0.39 cm(-1). The other model contemplates the presence of two uncoupled zero field split Mn(III) ions.
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van der Drift RC, Bouwman E, Drent E, Kooijman H, Spek AL, van Oort AB, Mul WP. Structure, Dynamic Behavior, and Catalytic Activity of a Novel Ruthenium Cyclopentadienyl Complex with a Tridentate P,P,O Ligand. Organometallics 2002. [DOI: 10.1021/om020218p] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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114
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Blaauw R, van der Baan JL, Balt S, de Bolster MW, Klumpp GW, Kooijman H, Spek AL. Bridged (alkoxo)CoIII(salen) complexes: synthesis and structure. Inorganica Chim Acta 2002. [DOI: 10.1016/s0020-1693(02)00831-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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115
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Kooijman H, Spek AL, Hoogenraad M, Bouwman E, Haasnoot JG, Reedijk J. Tris[2-(2-oxazolin-2-yl)phenolato]iron(III). Acta Crystallogr C 2002; 58:m390-2. [PMID: 12094037 DOI: 10.1107/s0108270102009435] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2002] [Accepted: 05/24/2002] [Indexed: 11/10/2022] Open
Abstract
The title compound, tris[2-(4,5-dihydrooxazol-2-yl-kappa N)phenolato-kappa O]iron(III), [Fe(C(9)H(8)NO(2))(3)], is disordered over a non-crystallographic twofold rotation axis perpendicular to the crystallographic threefold rotation axis. The disorder can be a pure rotational disorder of an iron complex in the facial configuration, or the consequence of a mixture of facial and meridional configurations. In the latter case, at least 25% of the iron complexes must adopt the facial configuration in order to obtain the disorder ratio observed in the crystal.
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116
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Martens CF, Schenning APHJ, Feiters MC, Berens HW, van der Linden JGM, Admiraal G, Beurskens PT, Kooijman H, Spek AL, Nolte RJM. X-ray Structures and Redox Properties of Copper(II) Bis(pyrazole) Complexes. Inorg Chem 2002. [DOI: 10.1021/ic00123a005] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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117
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Aromí G, Gamez P, Roubeau O, Carrero-Berzal P, Kooijman H, Spek A, Driessen W, Reedijk J. The First Case of Localcis versustrans Coordination as the Controlling Factor for the Overall Structure in Dinuclear Assemblies. Eur J Inorg Chem 2002. [DOI: 10.1002/1099-0682(200205)2002:5<1046::aid-ejic1046>3.0.co;2-a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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118
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Deelman BJ, Booij M, Meetsma A, Teuben JH, Kooijman H, Spek AL. Activation of Ethers and Sulfides by Organolanthanide Hydrides. Molecular Structures of (Cp*2Y)2(.mu.-OCH2CH2O)(THF)2 and (Cp*2Ce)2(.mu.-O)(THF)2. Organometallics 2002. [DOI: 10.1021/om00005a032] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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119
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Wehman-Ooyevaar ICM, Grove DM, Kooijman H, Van der Sluis P, Spek AL, Van Koten G. A hydrogen atom in an organoplatinum-amine system. 1. Synthesis and spectroscopic and crystallographic characterization of novel zwitterionic complexes with a Pt(II)-.cntdot..cntdot..cntdot.H-N+ unit. J Am Chem Soc 2002. [DOI: 10.1021/ja00051a025] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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120
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Avis MW, Vrieze K, Kooijman H, Veldman N, Spek AL, Elsevier CJ. Selective Formation of Four-Membered Metallacyclic Pt-N-P-C Compounds from Reactions of Bis((N-arylimino)phosphoranyl)methanes with Halide-Bridged Platinum(II) Phosphine Dimers. X-ray Crystal Structures of [PtCl(PMe2Ph){CH(PPh2:NC6H4-4-CH3)(PPh2N'HC6H4-4-CH3)}]+Cl- and [PtCl(PEt3){CH(PPh2:NC6H4-4-CH3)(PPh2N'HC6H4-4-CH3)}]+[PtCl3(PEt3)]-. Inorg Chem 2002. [DOI: 10.1021/ic00120a013] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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121
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Markies BA, Kruis D, Rietveld MHP, Verkerk KAN, Boersma J, Kooijman H, Lakin MT, Spek AL, van Koten G. Alkene and Carbon Monoxide Insertion Reactions of Nitrogen-Coordinated Monoorganopalladium(II) Complexes: The Stepwise Construction of Alternating Copolymers of CO and Alkenes on a Palladium(II) Center. J Am Chem Soc 2002. [DOI: 10.1021/ja00124a009] [Citation(s) in RCA: 113] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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122
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Markies BA, Wijkens P, Boersma J, Kooijman H, Veldman N, Spek AL, van Koten G. Synthesis and Structural Studies of Ionic Monoorganopalladium(II) Complexes with Tridentate Nitrogen-Donor Ligands. Organometallics 2002. [DOI: 10.1021/om00020a043] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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123
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de Klerk-Engles B, Fruhauf HW, Vrieze K, Kooijman H, Spek AL. Kinetic and thermodynamic products in the reaction of poly(dichlorodicarbonylruthenium) with pyridinecarbaldimine ligands and the crystal structure of trans-Cl2Ru(CO)2(N-(pyrid-2-ylmethoxymethyl)(3-isopropoxypropyl)amine). Inorg Chem 2002. [DOI: 10.1021/ic00076a020] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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124
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Hoogesteger FJ, Havenith RWA, Zwikker JW, Jenneskens LW, Kooijman H, Veldman N, Spek AL. Oligo(cyclohexylidenes): Parent Compounds and End-Functionalized Derivatives. J Org Chem 2002. [DOI: 10.1021/jo00119a014] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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125
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Kraakman MJA, Vrieze K, Kooijman H, Spek AL. Preparation of novel alkylated ruthenium .alpha.-diimine complexes: reactivity toward carbon monoxide and phosphines. Organometallics 2002. [DOI: 10.1021/om00059a046] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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