A 1,1,3,3-tetraphenyl-1,3-disiloxanediol pyridinium chloride lattice complex

Hossain, Md. Firose; Rahman, Mostafizur; Rasul, Golam; Hursthouse, Michael B.; Hussain, Bilquis

doi:10.1107/s0108270188002276

Cited by 12 publications

(10 citation statements)

References 1 publication

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“…In the solid state, various 1,3‐disiloxanediols have been observed to self‐associate into higher‐ordered species through hydrogen bonding (e.g., Figure A, B) . In the presence of strong H‐bond acceptors, such as anions, 1,3‐disiloxanediols form receptor–anion complexes with both silanols serving as hydrogen‐bond donors (e.g., 1 a ⋅pyrdine‐HCl, Figure 1 C) …”

Section: Introductionmentioning

confidence: 99%

Synthesis of Structurally Varied 1,3‐Disiloxanediols and Their Activity as Anion‐Binding Catalysts

Diemoz

Wilson

Franz

2016

Chemistry A European J

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A series of new 1,3-disiloxanediols has been synthesized, including naphthyl-substituted and unsymmetrical siloxanes, and demonstrated as a new class of anion-binding catalysts. In the absence of anions, diffusion-ordered spectroscopy (DOSY) displays self-association of 1,3-disiloxanediols through hydrogen-bonding interactions. Binding constants determined for 1,3-disiloxanediol catalysts indicate strong hydrogen-bonding and anion-binding abilities with unsymmetrical siloxanes displaying different hydrogen-bonding abilities for each silanol group.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Structurally Varied 1,3‐Disiloxanediols and Their Activity as Anion‐Binding Catalysts

Diemoz

Wilson

Franz

2016

Chemistry A European J

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“…However a Cl ion linking a phenol and an ammine hydrocloride as occurs in the title compound has apparently not been observed before. A single link between pyridinium hydrochloride and the OH hydrogen of triphenylmethanol has been observed (Sykora & Cioffi, 2007) as has a similar link with the OH group of 1,1,3,3-tetraphenyl-1,3-disiloxanediol (Hossain et al 1988 chloride and 3.162 (2) Å in 4-methylpyridinium hydrobromide (Faber et al 1999). Taking 2007).…”

Section: S2 Results and Discussionmentioning

confidence: 94%

“…For the structure of a related bis-phenol molecule, see: Okada (1996). For hydrogen bonds between pyridinium hydrochloride and OH-containing molecules, see: Sykora & Cioffi (2007); Hossain et al (1988). For structural data pertaining to pyridinium hydrohalides, see: Faber et al (1999); Hensen et al (1988); Mootz & Hocken (1989); van de Streek et al (2010).…”

Section: Related Literaturementioning

confidence: 99%

4-tert-Butylpyridinium chloride–4,4′-(propane-2,2-diyl)bis(2,6-dimethylphenol)–toluene (2/2/1)

Nielson

Waters

2014

Acta Cryst E

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In the title solvated salt, C9H14N+·Cl−·C19H24O2·0.5C7H7, two molecules of 4,4′-(propane-2,2-diyl)bis(2,6-dimethylphenol) are linked via O—H⋯Cl hydrogen bonds to two chloride ions, each of which is also engaged in N—H⋯Cl hydrogen bonding to a 4-tert-butylpyridinium cation, giving a cyclic hydrogen-bonded entity centred at 1/2, 1/2, 1/2. The toluene solvent molecule resides in the lattice and resides on an inversion centre; the disorder of the methyl group requires it to have a site-occupancy factor of 0.5. No crystal packing channels are observed.

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“…Silanols, i.e., silicon analogues of alcohols, are abundant inorganic compounds in nature. Because of the lower Pauling electronegativity of silicon (1.90) compared to that of carbon (2.55), the O–H ··· O hydrogen bonds of silanols are much stronger than the analogous alcohols, such that they display extensive ability to bind with anions, such as chloride[6e], and acetate,[7b], [7c], [7d], as well as nitro groups . Additionally, silanols readily provide the corresponding siloxanes via dehydration condensation, while the resultant siloxanes reversibly hydrolyse to the silanols.…”

Section: Introductionmentioning

confidence: 99%

Dipyrrin Complexes of Borasiloxane Silanols with Adaptive Hydrogen‐Bonded Conformations in the Crystal and in Solution States

2020

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Dipyrrin complexes of boradisiloxane disilanol 1 and borasiloxane silanol 2 were synthesized as a novel family of BODIPY-siloxane molecular hybrids. Compound 1 formed a selfcomplementary dimer through quadruple hydrogen bond in single crystal, while adopting a monomeric form with an intramolecular hydrogen bond in solution. Thus, the hydrogenbonded conformations were adaptive in the crystalline and solution states. Borasiloxane silanol 2 was isolated as a methyl boronate ester, which also displayed conformational adaptation behaviour in the crystal and solution states. The characteristic features of borasiloxane silanols, such as the flexibility of the [a] Dr. M. Morisue,versa. In this study, we prepared and isolated structurally discrete dipyrrin complexes of borasiloxane silanols, in which the dipyrrin ligand and phenyl rings constitute the "organic" segments and borasiloxane silanols as the "inorganic" portions and explored their dynamic conformational behaviour in the crystal and in solution states. 1886 Scheme 1. Synthesis of dipyrrin complexes of borasiloxane.

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A 1,1,3,3-tetraphenyl-1,3-disiloxanediol pyridinium chloride lattice complex

Abstract: Abstract. C24H2203Si2.CsH6N+.C1 -, M r = 530.16, monoclinic, P21/a, a=20.508 (7)

Cited by 12 publications

References 1 publication

Synthesis of Structurally Varied 1,3‐Disiloxanediols and Their Activity as Anion‐Binding Catalysts

Synthesis of Structurally Varied 1,3‐Disiloxanediols and Their Activity as Anion‐Binding Catalysts

4-tert-Butylpyridinium chloride–4,4′-(propane-2,2-diyl)bis(2,6-dimethylphenol)–toluene (2/2/1)

Dipyrrin Complexes of Borasiloxane Silanols with Adaptive Hydrogen‐Bonded Conformations in the Crystal and in Solution States

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