π−π Interactions Affect Coordination Geometries

Khavasi, Hamid Reza; Fard, Mahmood Azizpoor

doi:10.1021/cg100265d

Cited by 72 publications

(30 citation statements)

References 66 publications

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“…In the course of these investigations, a quite unexpected sevenfold coordination of a hydrated Hg(II) complex in aqueous solution has been revealed [6]. Also, there are some examples reported in the literature describing the influence of weak intermolecular interactions on the coordination geometry of the metal center and the formation of unusual coordination geometries around the Hg(II) ion [7][8][9].…”

Section: Introductionmentioning

confidence: 91%

Hg(II) coordination complexes containing the tris(2-pyridylmethyl)amine ligand: Synthesis, characterization and crystal structure analysis

et al. 2016

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Section: Introductionmentioning

confidence: 91%

Hg(II) coordination complexes containing the tris(2-pyridylmethyl)amine ligand: Synthesis, characterization and crystal structure analysis

et al. 2016

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“…[15b] To our knowledge, this case has remained, at least till very recently, [16] an unique example of how p-p stacking can control the metal coordination mode. To confirm the point, the paper compares in detail several derivatives obtained from the same Mn-tda precursor and various N co-ligands.…”

Section: àmentioning

confidence: 99%

“…In this respect, we have already communicated that 1D polymers of formula [MnA C H T U N G T R E N N U N G (tda)-A C H T U N G T R E N N U N G (bipy)] n (3) have a trigonal prismatic metal coordination, [15a] which is different with respect to any other derivative containing variously substituted bipy ligands (pseudo-octahedral metal geometry). [15b] To our knowledge, this case has remained, at least till very recently, [16] an unique example of how p-p stacking can control the metal coordination mode. To confirm the point, the paper compares in detail several derivatives obtained from the same Mn-tda precursor and various N co-ligands.…”

Section: Introductionmentioning

confidence: 99%

Thiodiacetate–Manganese Chemistry with N ligands: Unique Control of the Supramolecular Arrangement over the Metal Coordination Mode

Grirrane

Pastor

Galindo

et al. 2011

Chemistry A European J

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Copper(II) oxide nanoparticles supported on magnesia have been prepared from Cu(II) supported on magnesia by hydrogen reduction at 400 °C followed by storage under ambient conditions. X-ray photoelectron spectroscopy of the material clearly shows that immediately after the reduction copper(0)-metal nanoparticles are present on the magnesia support, but they undergo fast oxidation to copper oxide upon contact with the ambient for a short time. TEM images show that the catalytically active CuO/MgO material is formed of well-dispersed copper oxide nanoparticles supported on fibrous MgO. CuO/MgO exhibits a remarkable catalytic activity for the monoborylation of aromatic, aliphatic, terminal, and internal alkynes, the products being formed with high regio- (borylation at the less substituted carbon) and stereoselectivity (trans-configured). CuO/MgO exhibits complete chemoselectivity towards the monoborylation of alkynes in the presence of alkenes. Other metal nanoparticles such as gold or palladium are inactive towards borylation, but undergo undesirable oligomerization or partial hydrogenation of the C≡C triple bond. In contrast, platinum, either supported on magnesia or on nanoparticulate ceria, efficiently promotes the stereoselective diborylation of alkynes to yield a cis-configured diboronate alkene. By using platinum as the catalyst we have developed a tandem diborylation/hydrogenation reaction that gives vic-diboronated alkanes from alkynes in one pot.

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“…Compared with hydrogen-bond-driven networks, supramolecular networks driven by stacking have received less attention. Theinteraction undoubtedly plays an important role in determining the arrangement of discrete molecular complexes in the solid state (Khavasi & Fard, 2010).…”

Section: Commentmentioning

confidence: 99%

1,1′-[(Ethane-1,2-diyldioxy)di-o-phenylene]bis(indoline-2,3-dione) (L) and a novel [Ag₂L₂]²⁺metallocycle based on coordination-driven Ag—O and Ag—π bonds

Fang

Wei

et al. 2011

Acta Crystallogr C

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1,1'-[(Ethane-1,2-diyldioxy)di-o-phenylene]bis(indoline-2,3-dione), C(32)H(24)N(2)O(6), L or (I), adopts a trans conformation with the two terminal indoline-2,3-dione groups located on opposite sides of the central ether bridge, as required by a centre of inversion located at the mid-point of the ethane C-C bond. However, in the discrete binuclear Ag(I) metallocycle complex salt bis{μ-1,1'-[(ethane-1,2-diyldioxy)di-o-phenylene]bis(indoline-2,3-dione)}disilver(I) bis(hexafluoridoantimonate), [Ag(2)(C(32)H(24)N(2)O(6))(2)][SbF(6)](2), (II), synthesized by combination of L with AgSbF(6), L adopts a gauche conformation to bind Ag(I) via the two indolinedione O atoms and two C atoms from the phenoxy ring. One dione O atom from the opposite side of the ether bridge completes the irregular coordination environment of each Ag(I) atom. The complex is on a centre of inversion located between the Ag(I) atoms. In the solid state, these binuclear [Ag(2)L(2)](2+) metallocycles stack together via intermolecular π-π interactions to generate a one-dimensional chain motif, with the [SbF(6)](-) counter-ions, which are disordered, located between the chains.

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π−π Interactions Affect Coordination Geometries

Cited by 72 publications

References 66 publications

Hg(II) coordination complexes containing the tris(2-pyridylmethyl)amine ligand: Synthesis, characterization and crystal structure analysis

Hg(II) coordination complexes containing the tris(2-pyridylmethyl)amine ligand: Synthesis, characterization and crystal structure analysis

Thiodiacetate–Manganese Chemistry with N ligands: Unique Control of the Supramolecular Arrangement over the Metal Coordination Mode

1,1′-[(Ethane-1,2-diyldioxy)di-o-phenylene]bis(indoline-2,3-dione) (L) and a novel [Ag₂L₂]²⁺metallocycle based on coordination-driven Ag—O and Ag—π bonds

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π−π Interactions Affect Coordination Geometries

Cited by 72 publications

References 66 publications

Hg(II) coordination complexes containing the tris(2-pyridylmethyl)amine ligand: Synthesis, characterization and crystal structure analysis

Hg(II) coordination complexes containing the tris(2-pyridylmethyl)amine ligand: Synthesis, characterization and crystal structure analysis

Thiodiacetate–Manganese Chemistry with N ligands: Unique Control of the Supramolecular Arrangement over the Metal Coordination Mode

1,1′-[(Ethane-1,2-diyldioxy)di-o-phenylene]bis(indoline-2,3-dione) (L) and a novel [Ag2L2]2+metallocycle based on coordination-driven Ag—O and Ag—π bonds

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1,1′-[(Ethane-1,2-diyldioxy)di-o-phenylene]bis(indoline-2,3-dione) (L) and a novel [Ag₂L₂]²⁺metallocycle based on coordination-driven Ag—O and Ag—π bonds