Lanthanide contraction for helicity fine-tuning and helix-winding control of single-helical metal complexes

2016 ◽  
Vol 45 (38) ◽  
pp. 14902-14906 ◽  
Author(s):  
Shiho Sairenji ◽  
Shigehisa Akine ◽  
Tatsuya Nabeshima
Keyword(s):  
Metal Complexes ◽  
Fine Tuning ◽  
Lanthanide Contraction ◽  
Tetranuclear Complexes

Lanthanide contraction was used for helicity fine-tuning and helix winding control of single-helical tetranuclear complexes LZn3Ln (Ln = La–Lu).

Fine-Tuning Electronic Properties of Luminescent Pt(II) Complexes via Vertex-Differentiated Coordination of Sterically Invariant Carborane-Based Ligands

2018 ◽  
Author(s):  
Kent O. Kirlikovali ◽  
Jonathan C. Axtell ◽  
Kierstyn Anderson ◽  
Peter I. Djurovich ◽  
Arnold L. Rheingold ◽  
...  
Keyword(s):  
Coordination Chemistry ◽  
Metal Complexes ◽  
Electronic Properties ◽  
Fine Tuning ◽  
Fine Tune

We report the synthesis of two isomeric Pt(II) complexes ligated by doubly deprotonated 1,1′-bis(<i>o</i>-carborane) (<b>bc</b>). This work provides a potential route to fine-tune the electronic properties of luminescent metal complexes by virtue of vertex-differentiated coordination chemistry of carborane-based ligands.

Synergy of DNA intercalation and catalytic activity of a copper complex towards improved polymerase inhibition and cancer cell cytotoxicity

2021 ◽  
Author(s):  
Adolfo Ignacio Barros Romo ◽  
Marta SP Carepo ◽  
Pedro Levin ◽  
Otaciro Nascimento ◽  
Daniel E Diaz ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Metal Complexes ◽  
Cancer Cell ◽  
Copper Complex ◽  
Chemical Properties ◽  
Metal Center ◽  
Fine Tuning ◽  
Dna Intercalation ◽  
Cell Cytotoxicity ◽  
And Chemical Properties

Improving the binding of metal complexes to DNA to boost cancer cell cytotoxicity requires fine tuning of their structural and chemical properties. Copper has been used as metal center in...

Architecture of Supramolecular Metal Complexes for Photocatalytic CO2Reduction:  Ruthenium−Rhenium Bi- and Tetranuclear Complexes

2005 ◽  
Vol 44 (7) ◽  
pp. 2326-2336 ◽  
Author(s):  
Bobak Gholamkhass ◽  
Hiroaki Mametsuka ◽  
Kazuhide Koike ◽  
Toyoaki Tanabe ◽  
Masaoki Furue ◽  
...  
Keyword(s):  
Metal Complexes ◽  
Tetranuclear Complexes

Übergangsmetallkomplexe mit Schwefelliganden, XCVIII / Transition Metal Complexes with Sulfur Ligands, XCVIII

1993 ◽  
Vol 48 (6) ◽  
pp. 723-729 ◽  
Author(s):  
Dieter Sellmann ◽  
Richard Ruf
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Mononuclear Complex ◽  
Fine Tuning

Depending on the H+ concentration and solvent, reaction of [RuCl3(NO)(PPh3)2] with 'S2N2H2′2-- alternatively yields either [Ru(NO)PPh3(′S2N2H2′)]Cl 1 or [Ru(NO)(′S2N2H′)]2 2. 1 gives 2 upon treatment with base, 2 yields 1 when reacted with HC1 and PPh3 in THF. In MeOH, 2 is completely insoluble, but reacts with HC1 to give [Ru(NO)(′S2N2H2′)]2Cl2, 4a, which is converted into [RuCl(NO)(′S2N2H2′)] 3 when dissolved in THF.Reactions of 2 with phosphines such as PMe3, PPr3 or PBu3 in THF yield the corresponding [Ru(NO)PR3(′S2N2H′)] complexes, which is proof that not a protonation of the amido donor in 2, but sufficient solubility of 2 in the respective solvent and a subsequent dissociation into mononuclear complex fragments are decisive for cleavage of 2. Protonation or deprotonation of the N donors are more likely to influence the fine-tuning of the Ru center in [Ru(NO)(′S2N2H2′)] fragments with respect to coordination of hard or soft co-ligands.

Fine-Tuning Electronic Properties of Luminescent Pt(II) Complexes via Vertex-Differentiated Coordination of Sterically Invariant Carborane-Based Ligands

2018 ◽  
Author(s):  
Kent O. Kirlikovali ◽  
Jonathan C. Axtell ◽  
Kierstyn Anderson ◽  
Peter I. Djurovich ◽  
Arnold L. Rheingold ◽  
...  
Keyword(s):  
Coordination Chemistry ◽  
Metal Complexes ◽  
Electronic Properties ◽  
Fine Tuning ◽  
Fine Tune

We report the synthesis of two isomeric Pt(II) complexes ligated by doubly deprotonated 1,1′-bis(<i>o</i>-carborane) (<b>bc</b>). This work provides a potential route to fine-tune the electronic properties of luminescent metal complexes by virtue of vertex-differentiated coordination chemistry of carborane-based ligands.

Fine-Tuning the Basicity of Metal Complexes:  Reversible Oxidative Addition of Se−Se Bonds to Platinum(II) Precursors

2002 ◽  
Vol 21 (17) ◽  
pp. 3503-3505 ◽  
Author(s):  
Achille Panunzi ◽  
Giuseppina Roviello ◽  
Francesco Ruffo
Keyword(s):  
Metal Complexes ◽  
Oxidative Addition ◽  
Fine Tuning

Spin-State Control of Cobalt(II) and Iron(II) Complexes with Click-Derived Tripodal Ligands Through Non-Covalent and Fluorine-Specific Interactions

2021 ◽  
Author(s):  
Maite Nößler ◽  
David Hunger ◽  
Felix Reichert ◽  
Mario Winkler ◽  
Marc Reimann ◽  
...  
Keyword(s):  
Metal Complexes ◽  
Spin State ◽  
Fine Tuning ◽  
Tripodal Ligands ◽  
Specific Interactions ◽  
Spin States ◽  
State Control ◽  
Non Covalent Interactions ◽  
Covalent Interactions

The fine-tuning of intermolecular or intramolecular non-covalent interactions (NCIs) and thus the precise synthesis of metal complexes in which the spin states can be controlled by NCIs remains challenging, even...

Mechanochemical changes on cyclometalated Ir(iii) acyclic carbene complexes – design and tuning of luminescent mechanochromic transition metal complexes

2020 ◽  
Vol 7 (3) ◽  
pp. 786-794 ◽  
Author(s):  
Jingqi Han ◽  
Kin-Man Tang ◽  
Shun-Cheung Cheng ◽  
Chi-On Ng ◽  
Yuen-Kiu Chun ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Carbene Complexes ◽  
New Class

A new class of luminescent cyclometalated Ir(iii) complexes with readily tunable mechanochromic properties derived from the mechanically induced trans-to-cis isomerization have been developed.

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