Tris 1-Nitroso-2-naphtholate Complex of Ruthenium(II):  An Efficient Building Unit for Polynuclear Complexes

Das, Anjan Kumar; Rueda, A.; Falvello, Larry R.; Peng, Shie‐Ming; Bhattacharya, Samaresh

doi:10.1021/ic990191a

Cited by 40 publications

(19 citation statements)

References 44 publications

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“…Some additional examples are found in the literature. [34][35][36][37][38][39][40] Therefore, this strategy should be appropriate in order to make functional compounds in which the implementation of special properties is predetermined by substituents at the ligand and by judicious choice of the metal.…”

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confidence: 99%

Symmetry Driven Self-Assembly of Metallo-Supramolecular Architectures

Albrecht¹,

Fröhlich²

2007

Bulletin of the Chemical Society of Japan

112

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The self-assembly of well-defined metallosupramolecular aggregates highly depends on the symmetry of the ligands as well as of the metals. Approaches in which symmetry considerations allow the stepwise-''hierarchical''-assembly of helicate-type complexes from very simple catechol derivatives are described. In addition helicates and meso-helicates are stereoselectively obtained by the use of linear ligands possessing the relevant symmetry element for the formation of either diastereomer (even-odd principle). In case of helicates, this allows the preparation of enantiomerically pure complexes. Finally, the self-assembly of tetrahedral M 4 L 4 complexes is described using either constrained flexible or highly predisposed rigid ligands.

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Section: }]mentioning

confidence: 99%

Symmetry Driven Self-Assembly of Metallo-Supramolecular Architectures

Albrecht¹,

Fröhlich²

2007

Bulletin of the Chemical Society of Japan

112

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“…These classes of compounds usually react with metals to give complexes in which the semicarbazones behave as chelating ligands. Semicarbazones exist in two tautomeric forms, keto and enol [13], and can coordinate to the metal either as a neutral ligand or as a deprotonated anion. Currently, there are only very few reports on cobalt complexes of N(4)-substituted semicarbazones [14].…”

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confidence: 99%

Synthesis, spectroscopic characterization, and antimicrobial activity of cobalt(II) complexes of acetone-N(4)-phenylsemicarbazone: crystal structure of [Co(HL)2(MeOH)2](NO3)2

Siji¹,

Sudarsanakumar²,

Suma³

2011

Transition Met Chem

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Four Co(II) complexes, [Co(HL) 2 ](OAc) 2 , [Co(HL) 2 Cl 2 ], [Co(HL) 2 (MeOH) 2 ](NO 3 ) 2 , and [Co 2 (HL) 4 -(SO 4 ) 2 ] (HL = acetone-N(4)-phenylsemicarbazone) were synthesized and characterized by physicochemical and spectroscopic methods. The magnetic susceptibility measurements indicate that the complexes are paramagnetic with three unpaired electrons. In all the complexes, the semicarbazone is coordinated as a neutral bidentate ligand. The structure of [Co(HL) 2 (MeOH) 2 ](NO 3 ) 2 was confirmed by single crystal X-ray crystallography. The ligand is neutral and bidentate, being coordinated to the cobalt atom through the carbonyl oxygen and the azomethine nitrogen. Intermolecular hydrogen bonding and C-HÁÁÁp interactions combine to stabilize the crystal structure. The ligand and its two complexes [Co(HL) 2 Cl 2 ] and [Co(HL) 2 (MeOH) 2 ]-(NO 3 ) 2 were screened for their antibacterial and antifungal activities using disk diffusion methods.

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“…[7] The introduction of enantiomerically pure ligands can afford diastereomerically and enantiomerically pure helicates. [8] Recently, hierarchically formed [9] helicates with bridging lithium cations were described, [10] in which three Li + ions connect two mononuclear complex moieties. In this case, the interlocking of the two propeller-type complexes, which allows effective coordination of the lithium ions, is only possible if the two propellers possess the same twist.…”

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confidence: 99%