Exploratory studies on coordination chemistry of a redox-active bridging ligand: synthesis, properties and solid state structures of the complexes

Dianionic N,N-chelating ligands play a crucial role in coordination chemistry, but reports on related complexes remain limited to certain types of ligands. In here, the reactions of two diprotic ligands, i.e., a biguanide and a carbothiamide, with trimethylaluminium, are reported, which give rise to mono- and dinuclear aluminium(III) complexes. In addition, single deprotonation of the diprotic biguanide using potassium bis(trimethylsilyl)amide gives rise to a one-dimensional coordination polymer. All complexes have been fully characterized, and their solid-state structures were determined by single crystal X-ray diffraction analysis.

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Coordination Chemistry of Ester-Functionalized Cp Ligands. The Atom-Economy Synthesis of Na[C5H4CO2(CH2)2OH] and Solid State Structures of [Rh{C5H4CO2(CH2)2OH}(CO)2] and [Rh2{μ-(C5H4CO2CH2)2}(NBD)2]

Organometallics ◽

10.1021/om0108393 ◽

2002 ◽

Vol 21 (9) ◽

pp. 1849-1855 ◽

Cited By ~ 13

Author(s):

Luigi Busetto ◽

M. Cristina Cassani ◽

Vincenzo G. Albano ◽

Piera Sabatino

Keyword(s):

Coordination Chemistry ◽

Solid State ◽

Atom Economy ◽

Solid State Structures

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1,3,6,8-Tetraazapyrenes: Synthesis, Solid-State Structures, and Properties as Redox-Active Materials

The Journal of Organic Chemistry ◽

10.1021/jo300894p ◽

2012 ◽

Vol 77 (14) ◽

pp. 6107-6116 ◽

Cited By ~ 24

Author(s):

Sonja Geib ◽

Susanne C. Martens ◽

Ute Zschieschang ◽

Florian Lombeck ◽

Hubert Wadepohl ◽

...

Keyword(s):

Solid State ◽

Active Materials ◽

Redox Active ◽

Structures And Properties ◽

Solid State Structures

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Copper(i), silver(i) and gold(i) complexes of N-heterocyclic carbene-phosphinidene

Dalton Transactions ◽

10.1039/c4dt03285c ◽

2015 ◽

Vol 44 (10) ◽

pp. 4449-4454 ◽

Cited By ~ 32

Author(s):

Venkata A. K. Adiraju ◽

Muhammed Yousufuddin ◽

H. V. Rasika Dias

Keyword(s):

Solid State ◽

Metal Ions ◽

Bridging Ligand ◽

Solid State Structures

IMes·PPh serves as a good bridging ligand for group 11 metal ions affording molecules with diverse solid state structures.

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Coordination Chemistry of Cyclopentadienyl Ester-Disubstituted Ligands. Synthesis and Solid State Structures of [Na([18]-crown-6)][C5H3(CO2Et)2-1,2] and [Mn{C5H3(CO2Ph)2-1,2}(CO)3]

Organometallics ◽

10.1021/om000662x ◽

2001 ◽

Vol 20 (2) ◽

pp. 282-288 ◽

Cited By ~ 17

Author(s):

Luigi Busetto ◽

M. Cristina Cassani ◽

Valerio Zanotti ◽

Vincenzo G. Albano ◽

Piera Sabatino

Keyword(s):

Coordination Chemistry ◽

Solid State ◽

Solid State Structures

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Synthesis and coordination chemistry of 2,2′-diboratabiphenyls

Canadian Journal of Chemistry ◽

10.1139/v05-220 ◽

2006 ◽

Vol 84 (2) ◽

pp. 81-92 ◽

Cited By ~ 4

Author(s):

Ioan Ghesner ◽

Warren E Piers ◽

Masood Parvez ◽

Robert McDonald

Keyword(s):

Coordination Chemistry ◽

Solid State ◽

Comparative Studies ◽

Rhodium Complexes ◽

The Novel ◽

X Ray ◽

New Class ◽

Dinucleating Ligands ◽

Binucleating Ligands ◽

Solid State Structures

Dianionic 2,2′-diboratabiphenyl derivatives were prepared as a new class of binucleating ligands. Preliminary investigations into their coordination chemistry involved Rh complexes. Their solution and solid state structures were studied and confirm the preference for η6η6 coordination of the novel ligands, rendering them isoelectronic analogues of the ubiquitous bicyclopentadienyl system. Comparative studies suggest stronger donor properties for the fulvalene ligand as compared with the 2,2′-diboratabiphenyl system.Key words: dinucleating ligands, bimetallic complexes, rhodium complexes, boron heterocycles, X-ray structure.

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The Influence of Aryl Substituents on the Supramolecular Structures and Photoluminescence of Cyclic Trinuclear Pyrazolato Copper(I) Complexes

Nanomaterials ◽

10.3390/nano11113101 ◽

2021 ◽

Vol 11 (11) ◽

pp. 3101

Author(s):

Kiyoshi Fujisawa ◽

Mai Saotome ◽

Yoko Ishikawa ◽

David James Young

Keyword(s):

Coordination Chemistry ◽

Solid State ◽

Nitrogen Atom ◽

Transition Metal Ions ◽

Photoluminescence Properties ◽

State Structure ◽

Linear Mode ◽

Bridging Ligand ◽

Trinuclear Complexes ◽

Cuprophilic Interactions

Cyclic trinuclear complexes with group 11 metal (I) ions are fascinating and important to coordination chemistry. One of the ligands known to form these cyclic trinuclear complexes is pyrazolate, which is a bridging ligand that coordinates many transition metal ions in a Npz–M–Npz linear mode (Npz = pyrazolyl nitrogen atom). In these group 11 metal (I) ions, copper is the most abundant metal. Therefore, polynuclear Copper(I) complexes are very important in this field. The cyclic trinuclear Copper(I) complex [Cu(3,5-Ph2pz)]3 (3,5-Ph2pz– = 3,5-diphenyl-1-pyrazolate anion) was reported in 1988 as a landmark complex, but its photoluminescence properties have hitherto not been described. In this study, we report the photoluminescence and two different polymorphs of [Cu(3,5-Ph2pz)]3 and its derivative [Cu(3-Me-5-Phpz)]3 (3-Me-5-Phpz– = 3-metyl-5-phenyl-1-pyrazale anion). The substituents in [Cu(3-Me-5-Phpz)]3 cause smaller distortions in the solid-state structure and a red-shift in photoluminescence due to the presence of intermolecular cuprophilic interactions.

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