Assembly modes in the solid state structure of the complexes of melamine mono-cations with para-calix[4]arene sulfonic acid and calix[4]arene dihydroxyphosphonic acid

2006 ◽  
Vol 30 (1) ◽  
pp. 59-64 ◽  
Author(s):  
Adina N. Lazar ◽  
Oksana Danylyuk ◽  
Kinga Suwinska ◽  
Anthony W. Coleman
Keyword(s):  
Solid State ◽  
Sulfonic Acid ◽  
State Structure ◽  
Solid State Structure

Tuning Coordination Environments Through Ligand Redox Chemistry: the Thiol - Disulfide Reaction

2010 ◽  
Vol 63 (9) ◽  
pp. 1334 ◽  
Author(s):  
Edwin C. Constable ◽  
Catherine E. Housecroft ◽  
Markus Neuburger ◽  
Jason R. Price ◽  
Jennifer A. Zampese
Keyword(s):  
Solid State ◽  
Oxidative Coupling ◽  
Sulfonic Acid ◽  
Redox Chemistry ◽  
Methyl Substituent ◽  
State Structure ◽  
Solid State Structure ◽  
Bridging Ligand

Oxidative coupling of 6-(pyridin-2-yl)pyridine-2(1H)-thione yields 1,2-bis(2,2′-bipyridin-6-yl)disulfide (4), which can act as a bis(chelate) to a single zinc(ii) centre. The effects on the solid-state structure of introducing a methyl substituent into each 6-position of 4 have been examined. Ligand 4 functions as a bridging ligand in [Cu2(μ-4)(μ-6)]4+ in which ligand 6 is 1,2-bis(2,2′:6′,2″-terpyridin-4′-yl)disulfide; [Cu2(μ-4)(μ-6)]4+ self-assembles from the components according to the preference shown by copper(ii) for a five-coordinate {Cu(bpy)(tpy)} environment. Reaction of 4 with [Cu(NCMe)4][PF6] leads to a product, tentatively formulated as {[Cu(4)][PF6]}n, which, in air, undergoes oxidation of both copper and ligand to yield [Cu(5)2] (H5 = 2,2′-bipyridine-6-sulfonic acid), the solid state structure of which is presented.

The structure of [Cu(bipy)3][Cu(bipy)(ala)(ClO4)2]ClO4 � a Compound with Two Different Coordination Modes in the same Complex

2008 ◽  
Vol 59 (11) ◽  
Author(s):  
Mircea Braban ◽  
Ionel Haiduc
Keyword(s):  
Solid State ◽  
Chelate Ring ◽  
Octahedral Complex ◽  
State Structure ◽  
Complex Species ◽  
Solid State Structure ◽  
Coordination Modes ◽  
Coordination Center ◽  
Self Assembled ◽  
Chelate Rings

The paper describes the solid state structure of a compound of composition [Cu(bipy)3][Cu(bipy)(ala) (ClO4)2]ClO4, in which both the cation and anion are octahedral complex species with copper(II) as coordination center. The cation contains three chelate rings formed by bipy; the anion contains in the quatorial plane a CuONC2 chelate ring formed by the alaninato ligand and a CuN2C2 chelate ring formed by bipy, with two monodentate perchorato ligands in axial positions completing the six-coordination. In the crystal p-p stackings lead to a supramolecular self-assembled structure.

Synthesis and Solid-State Structure of (4-Hydroxy-3,5-diiodophenyl)phosphine Oxides. Dimeric Motifs with the Assistance of O-H···O=P Hydrogen Bonds

2015 ◽  
Vol 19 (5) ◽  
pp. 469-474 ◽  
Author(s):  
Nicholas Bewick ◽  
Agata Arendt ◽  
Yan Li ◽  
S.awomir Szafert ◽  
Tadeusz Lis ◽  
...  
Keyword(s):  
Solid State ◽  
Hydrogen Bonds ◽  
Phosphine Oxides ◽  
State Structure ◽  
Solid State Structure

Insight into the formation of H-bonds propagating the monomeric zinc complexes of a tridentate reduced Schiff base to form an infinite chain

CrystEngComm ◽  
2021 ◽  
Author(s):  
Mainak Karmakar ◽  
Antonio Frontera ◽  
Shouvik Chattopadhyay
Keyword(s):  
Schiff Base ◽  
Solid State ◽  
Dft Calculations ◽  
Zinc Complexes ◽  
Infinite Chain ◽  
State Structure ◽  
Computational Tools ◽  
Solid State Structure ◽  
Reduced Schiff Base ◽  
Insight Into

The formation of an infinite 1D assembly is governed by the H-bonding interactions in the solid state structure of the two zinc complexes. It has been analyzed energetically using DFT calculations and several computational tools.

Triazole-tethered ferrocene-quinoline conjugates: solid-state structure analysis, electrochemistry and theoretical calculations

2021 ◽  
Author(s):  
Senka Djaković ◽  
Silvija Maračić ◽  
Jasmina Lapić ◽  
Eduard Kovalski ◽  
Alexander Hildebrandt ◽  
...  
Keyword(s):  
Solid State ◽  
Structure Analysis ◽  
Theoretical Calculations ◽  
State Structure ◽  
Solid State Structure

Role of solid-state structure in propene hydrogenation with nickel catalysts

1990 ◽  
Vol 86 (4) ◽  
pp. 739 ◽  
Author(s):  
Giovanni Carturan ◽  
Stefano Enzo ◽  
Renzo Ganzerla ◽  
Maurizio Lenarda ◽  
Roberto Zanoni
Keyword(s):  
Solid State ◽  
Nickel Catalysts ◽  
State Structure ◽  
Solid State Structure

Neuartige Synthese und Molekülstruktur von Benzylkalium (thf) [KCH2C6H5]2 / Novel Synthesis and Molecular Structure of Benzyl Potassium (thf)[KCH2C6H5]2

1998 ◽  
Vol 53 (5-6) ◽  
pp. 625-627 ◽  
Author(s):  
Matthias Westerhausen ◽  
Wolfgang Schwarz
Keyword(s):  
Molecular Structure ◽  
Solid State ◽  
Solvent Mixture ◽  
State Structure ◽  
Solid State Structure ◽  
Novel Synthesis

Abstract The reaction of potassium with hexamethyldi-stannane in a refluxing solvent mixture of toluene and tetrahydrofuran (ratio 10:1) yields the red tetrahydrofuran adduct of benzyl potassium (thf)[KCH2C6H5]2 due to the metalation of toluene by the potassium trimethylstannanide intermediate. The solid state structure of (thf)[KCH2C6H5]2 contains dimers with only one potassium coordinated to a tetrahydrofuran molecule. These dimers form a polymer through benzyl bridging with shortest K-C distances at 292 pm.

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