Vapor-liquid equilibrium data at 25�C for six binary systems containing methyl acetate or methanol, with dichloromethane, chloroform, or 1,2-trans-dichloroethylene

Martin, Maria C.; Cocero, Marı́a José; Mato, Fidel

doi:10.1007/bf00651642

Cited by 19 publications

(15 citation statements)

References 6 publications

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“…The same behaviour was also attained by considering the composition of the vapour phase as determined from literature data collected at 25 °C under saturated conditions ( Figure S8). [43] This indicates that the vapochromic behaviour of 1a:Zn might be predicted when dispersed in PMMA films and the derived parameters can be easily determined by means of luminescent experiments.…”

Section: <Figure 7 Near Here>mentioning

confidence: 88%

“…Figure 6 against the inverse of dichloromethane volume % in the liquid mixture (X) and in the vapour phase (Y) as determined by extrapolation of literature data. [43] Figure S3. Benesi-Hildebrand [33,34] plot used to determine the association constants, derived from titration of 1a with Zn 2+ in ACN in absorption (up) and in emission (down), respectively.…”

Section: Discussionmentioning

confidence: 99%

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Zn(II)-bisthienylethynylbipyridine complex: Preparation, characterization and vapochromic behaviour in polymer films

et al. 2014

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In the present work, we report the vapochromic behaviour of PMMA films doped with small amounts of 1a:Zn fluorophore, a Zn 2+ adduct of the bisthienylethynylbipyridine ligand. 1a:Zn exhibited polarity-dependent changes in the fluorescence spectral properties when dissolved in solvents with different polarity index, indicating that its fluorescence states are of intramolecular charge transfer character. When 1a:Zn was dispersed in the PMMA matrix, its emission resulted barely influenced by the polymer environment. By contrast, 1a:Zn/PMMA films showed a significant variation of its emission with a 40 nm red-shift when exposed to a saturated atmosphere of dichloromethane. This vapochromic behaviour was much less evident when progressive amounts of methanol were added to dichloromethane due to both lower vapour pressure and limited interaction of the former with PMMA. The experiments revealed also that the rate constants associated with the vapochromic behaviour were affected by solvent composition and easily determined by luminescent experiments.

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Section: <Figure 7 Near Here>mentioning

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Zn(II)-bisthienylethynylbipyridine complex: Preparation, characterization and vapochromic behaviour in polymer films

et al. 2014

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“…The methanol and acetone can interact through intermolecular hydrogen bonding as acetone is a weak proton acceptor. Thus, the binary mixtures of methanol with DCM and acetone show strong positive deviation from ideality (26,27). The formation of electron donor-acceptor complexes and the absence of association in the pure components, and thereby the negative deviation from ideality, have been documented for the DCM-acetone system throughout a broad composition range (28).…”

Section: Solution Dynamics Of Drug and Polymer Systems In Spray-dryinmentioning

confidence: 93%

Influence of Solvent Composition on the Miscibility and Physical Stability of Naproxen/PVP K 25 Solid Dispersions Prepared by Cosolvent Spray-Drying

Paudel

Mooter

2011

Pharm Res

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“…However, in a mixture of dichloromethane and methanol at −15 °C, blue crystals were observed (Figure 2 A). Dichloromethane and methanol form an 8:1 azeotrope, with boiling point of 38 °C, compared to 40 °C for dichloromethane and 65 °C for methanol alone 17. In the azeotrope, the host is much more soluble than in dichloromethane alone, while monomer 2 is more stable than in methanol alone.…”

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confidence: 97%

Synthesis of the Stable Ordered Conjugated Polymer Poly(dibromodiacetylene) from an Explosive Monomer

et al. 2015

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Dibromobutadiyne is an extremely unstable compound that explodes at room temperature, even under inert atmosphere. This instability has limited the studies of dibromobutadiyne almost entirely to spectroscopic characterization. Here we report an approach to control the reactivity of dibromobutadiyne, via topochemical reaction in cocrystals, leading to the ordered polymer poly(dibromodiacetylene), PBDA. At low temperatures (-15 to -18 °C), dibromobutadiyne can form cocrystals with oxalamide host molecules containing either pyridyl or nitrile side groups, in which halogen bonds align the dibromobutadiyne monomers for topochemical polymerization. The cocrystals with the bis(nitrile) oxalamide host undergo complete ordered polymerization to PBDA, demonstrated by solid-state MAS-NMR, Raman, and optical absorption spectroscopy. Once formed, the polymer can be separated from the host; unlike the monomer, PBDA is stable at room temperature.

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Vapor-liquid equilibrium data at 25�C for six binary systems containing methyl acetate or methanol, with dichloromethane, chloroform, or 1,2-trans-dichloroethylene

Cited by 19 publications

References 6 publications

Zn(II)-bisthienylethynylbipyridine complex: Preparation, characterization and vapochromic behaviour in polymer films

Zn(II)-bisthienylethynylbipyridine complex: Preparation, characterization and vapochromic behaviour in polymer films

Influence of Solvent Composition on the Miscibility and Physical Stability of Naproxen/PVP K 25 Solid Dispersions Prepared by Cosolvent Spray-Drying

Synthesis of the Stable Ordered Conjugated Polymer Poly(dibromodiacetylene) from an Explosive Monomer

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