Bis(diphenylphosphino)methane and related ligands as hydrogen bond donors†

Jones, Peter G.; Ahrens, Birte

doi:10.1039/a803905d

Cited by 44 publications

(29 citation statements)

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“…; Braga et al, 1995); (v)`organic' hydrogen bonds, in which the functional groups (ÐCO 2 H etc.) are familiar from organic chemistry and are present as substituents on ligands attached to organometallic or coordination complexes of inorganic elements Braga, Grepioni, Walther et al 1997;Jones & Ahrens, 1998).…”

Section: Hydrogen Bondsmentioning

confidence: 99%

Applications of the Cambridge Structural Database to molecular inorganic chemistry

Orpen

2002

Acta Crystallogr B Struct Sci

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Applications of the data in the Cambridge Structural Database (CSD) to knowledge acquisition and fundamental research in molecular inorganic chemistry are reviewed. Various classes of application are identi®ed, including the derivation of typical molecular dimensions and their variability and transferability, the derivation and testing of theories of molecular structure and bonding, the identi®cation of reaction paths and related conformational analyses based on the structure correlation hypothesis, and the identi®cation of common and presumably energetically favourable intermolecular interactions. In many of these areas, the availability of plentiful structural data from the CSD is set against the emergence of high-quality computational data on the geometry and energy of inorganic complexes.

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Section: Hydrogen Bondsmentioning

confidence: 99%

Applications of the Cambridge Structural Database to molecular inorganic chemistry

Orpen

2002

Acta Crystallogr B Struct Sci

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“…The tris-dithiocarbamate (tris-dtc) ligands required for the preparation of the remaining compounds were obtained by reaction of tris [2-(methylamino)ethyl]amine, tris [2-(isopropylamino)ethyl]amine and tris [2-(benzylamino) ethyl]amine with carbon disulfide in the presence of potassium hydroxide. Subsequent reaction with dimethyltin and di-n- (6) 1.687 (6) 1.709 (5) 1.703 (6) 1.705(5) 1.702(5) 1.750 (5) 1.739 (5) 1.750 (6) 1.754 (7) 1.755(5) 1.744(5) 1.744(5) 1.742(5) 1.743(5) CeN dtc 1.322 (7) 1.323 (7) 1.322 (7) 1.311 (8) 1.320 (7) 1.320 (6) 1.315 (7) 1.318 (6) 1.315 (7) (17) 1.714 (18) 1.698(5) 1.720 (19) 1.750 (16) 1.735(5) CeN dtc 1.34 (2) 1.31 (2) 1.336 (6) Bond angles CeSneC 124.4 (7) 127.9 (7) 129.5 (2) butyltin dichloride in 1:3 ligand-to-diorganotin(IV) stoichiometric ratios gave complexes 3e8 in yields ranging from 27 to 68%. Additionally, starting from tris [2-(methylamino)ethyl]amine, the corresponding di-tert-butyltin complex 9 was prepared in 48% yield (Scheme 1).…”

Section: Preparation and Spectroscopic Characterizationmentioning

confidence: 96%

“…In the crystal structure of 1, neighboring molecules are linked by pairs of C2-H2B/Cl1 and C21-H21C/S4 hydrogen bonds [19,20], thus generating 1D supramolecular chains running along axis c. The 1D chains are interconnected through C3eH3B/Cl2 hydrogen bonds to give an overall 2D hydrogen-bonded supramolecular grid parallel to the ac plane (Fig. 2a, Table 4).…”

Section: Single-crystal X-ray Diffraction Analysis Of Compounds 1e4 Amentioning

confidence: 97%

Molecular structures and supramolecular association of chlorodiorganotin(IV) complexes with bis- and tris-dithiocarbamate ligand

Tlahuext

Reyes-Martínez

Vargas-Pineda

et al. 2011

Journal of Organometallic Chemistry

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“…Finally, in the crystal structures of the chloroform and ethanol solvates of [(dppmSe) 2 Au]Cl [91] the ions are connected into chains by CÀHÁ Á ÁCl hydrogen bonds, whereby the chloride accepts two hydrogen bonds. Additionally, there is a CÀHÁ Á ÁCl contact from a solvent molecule in the chloroform solvate ( Figure 5.56b) and an OÁ Á ÁCl contact involving the solvent in the ethanol solvate.…”

Section: Hydrogen Bonds: Nmá á áHànm Interactionsmentioning

confidence: 99%

Supramolecular Architecture by Secondary Bonds

Olmos

2008

Modern Supramolecular Gold Chemistry

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Since the metal center in gold complexes usually displays acid character, AuÁ Á ÁNM contacts will be more easily formed as the basicity of the non-metal increases. Thus, there are many goldÁ Á Áhalogen weak interactions between cationic gold complexes and halides or anions of which the halogen forms part, but most are individual contacts between ions that do not generate supramolecular structures. For example, about 50% of AuÁ Á ÁCl contacts are isolated cationÁ Á Áanion interactions.Nevertheless, in some cases, cationÁ Á Áanion contacts give rise to extended structures, as in both the colorless and the yellow polymorph of [Au(C:NC 6 H 11 ) 2 ][PF 6 ] [13], where the gold cations aggregate via aurophilic contacts into infinite linear chains, which are further connected through AuÁ Á ÁF contacts to afford two-dimensional 296j 5 Supramolecular Architecture by Secondary Bonds adjacent molecules, 3.695(1) Å, is slightly longer than the sum of the van der Waals radii.Apart from these types of associations observed in certain neutral gold(I) products, one-dimensional polymers can be formed by AuÁ Á ÁCl interactions between ions, which are more often found when the gold(III) anion [AuCl 4 ] À is present, as occurs, for example, in [EMIM][AuCl 4 ] and [BMIM][AuCl 4 ] ([EMIM]þ ¼ 1-ethyl-3methylimidazolium, [BMIM]þ ¼ 1-(n-butyl)-3-methylimidazolium) [17]. Both salts are very similar in the solid state with each ion surrounded by eight counterions in a cubic fashion and containing two crystallographically independent [AuCl 4 ] À anions arranged perpendicularly to one another and connected by AuÁ Á ÁCl contacts. This results in infinite anionic chains of alternating corner-to-face arranged [AuCl 4 ] À units (Figure 5.5), a unique pattern in salts containing purely tetrachloroaurate(III) anions. The interionic AuÁ Á ÁCl distances in the EMIM and BMIM derivatives are 3.356(3) and 3.452(3) Å, respectively, the latter very close to the sum of the van der Waals radii of gold and chlorine (3.41 Å). In the mixed-valent compound [Au(terpy)Cl] 2 [AuCl 2 ] 3 [AuCl 4 ] [18], an infinite chain of gold containing anions and cations is generated through two types of weak interactions: aurophilic contacts, which result in pentanuclear units, and AuÁ Á ÁCl interactions ( Figure 5.6). Three [AuC1 2 ] À anions, arranged in a spiral, bridge two [Au(terpy)C1] 2þ cations through long axial contacts. The remaining axial site of the [Au(terpy)Cl] 2þ cation is occupied by a chlorine atom from a square-planar [AuC1 4 ] À anion at distance of 3.401(4) Å, resulting in a polymeric Á Á ÁCl-Au III -ClÁ Á ÁAu III Á Á ÁAu I Á Á ÁAu I Á Á ÁAu I Á Á ÁAu III Á Á ÁCl-Au III -ClÁ Á Á chain.A more complicated extended structure is present in [Au(HDMG) 2 ][AuCl 4 ] (H 2 DMG¼dimethylglyoxime, HON¼C(Me)C(Me)¼NOH) [19], where onedimensional polymers are formed via interionic AuÁ Á ÁCl contacts of 3.323(4) and Figure 5.5

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Bis(diphenylphosphino)methane and related ligands as hydrogen bond donors†

Cited by 44 publications

References 6 publications

Applications of the Cambridge Structural Database to molecular inorganic chemistry

Applications of the Cambridge Structural Database to molecular inorganic chemistry

Molecular structures and supramolecular association of chlorodiorganotin(IV) complexes with bis- and tris-dithiocarbamate ligand

Supramolecular Architecture by Secondary Bonds

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