Neutral and anionic phosphate-diesters as molecular templates for the encapsulation of a water dimer

2018 ◽  
Vol 54 (84) ◽  
pp. 11913-11916 ◽  
Author(s):  
Vivek Gupta ◽  
Biswajit Santra ◽  
Debdeep Mandal ◽  
Shubhajit Das ◽  
Ramakirushnan Suriya Narayanan ◽  
...  
Keyword(s):  
Water Dimer ◽  
Phosphate Diesters ◽  
Water Dimers

Neutral and anionic phosphate diesters act as molecular templates for the encapsulation of water dimers.

Polysulfonylamine, XC [1] Carbonsäure-Dimere, Wasser-Dimere und 18-Krone-6-Moleküle als Baugruppen eines supramolekularen Kettenpolymers: Darstellung und Struktur von (CH2CH2O)6 • 4H2O • 2HN(SO2C6H4-4-COOH)2 / Polysulfonylamines, XC [1] Carboxylic Acid Dimers, Water Dimers and 18-Crown-6 Molecules as Building Blocks in a Supramolecular Chain Polymer: Synthesis and Structure of (CH2CH2O)6 · 4H2O · 2HN(SO2C6H4-4-COOH)2

1997 ◽  
Vol 52 (8) ◽  
pp. 997-1002 ◽  
Author(s):  
Karna Wijaya ◽  
Oliver Moers ◽  
Armand Blaschette ◽  
Peter G Jones
Keyword(s):  
Carboxylic Acid ◽  
Building Blocks ◽  
Hot Water ◽  
Water Dimer ◽  
X Ray Diffraction ◽  
Chain Polymer ◽  
Triclinic Space Group ◽  
Ether Oxygen ◽  
Donor Acceptor ◽  
Water Dimers

The ternary title complex (2) is readily obtained by co-crystallization of 18-crown-6 (18C6) and di(4-carboxybenzenesulfonyl)amine (1) from hot water and was characterized by low-temperature X-ray diffraction. The crystal structure (triclinic, space group P1̄) displays one-dimensional polymeric sequences [(H2O)2···18C6···(H2O)2···{HN(SO2C6H4-4-COOH)2}2] in which the molecules are associated through seven independent hydrogen bonds. The 18C6 ring lies on a crystallographic inversion centre and adopts the common pseudo-D3d conformation. On both sides, the ring is flanked by a strongly hydrogen-bonded water dimer H2O-H-OH. This species forms three weak O-H-O bonds to alternating ether oxygen atoms and accepts a strong N-H-O bond from the adjacent acid dimer (1)2. The water dimers thus act as ideal donor-acceptor balancing links between the hexafunctional polyether and the monofunctional NH groups of the (1)2 dimers. The (1)2 dimer itself is formed by two symmetry related cyclic O-H···O interactions (both H disordered) of the well-known carboxylic acid dimer type. To this effect, molecule 1 adopts a folded, pseudo-Cs symmetric conformation with stacked carboxyphenyl groups.

scholarly journals Conformational equilibrium and internal dynamics in the iso-propanol–water dimer

2017 ◽  
Vol 19 (1) ◽  
pp. 568-573 ◽  
Author(s):  
Luca Evangelisti ◽  
Qian Gou ◽  
Gang Feng ◽  
Walther Caminati ◽  
Griffin J. Mead ◽  
...  
Keyword(s):  
Conformational Equilibrium ◽  
Water Dimer ◽  
Rotational Spectroscopy ◽  
Internal Dynamics ◽  
Water Dimers

Using rotational spectroscopy, we report characterization of two iso-propanol–water dimers. We further characterize the dynamics of one isomer.

Revisiting the Spectroscopy of Water Dimer in Jets

2021 ◽  
Vol 12 (4) ◽  
pp. 1316-1320
Author(s):  
Iker León ◽  
Raúl Montero ◽  
Asier Longarte ◽  
José A. Fernández
Keyword(s):  
Water Dimer

Computational determination of equilibrium geometry and dissociation energy of the water dimer

2000 ◽  
Vol 2 (10) ◽  
pp. 2227-2234 ◽  
Author(s):  
W. Klopper ◽  
J. G. C. M. van Duijneveldt-van de Rijdt ◽  
F. B. van Duijneveldt
Keyword(s):  
Dissociation Energy ◽  
Water Dimer ◽  
Equilibrium Geometry

Photodissociation of Water Dimer at 205 nm†

2004 ◽  
Vol 108 (39) ◽  
pp. 8119-8124 ◽  
Author(s):  
Masahiro Kawasaki ◽  
Akihiro Sugita ◽  
Christopher Ramos ◽  
Yutaka Matsumi ◽  
Hiroto Tachikawa
Keyword(s):  
Water Dimer

The catalytic effect of water, water dimers and water trimers on H2S +3O2formation by the HO2+ HS reaction under tropospheric conditions

2016 ◽  
Vol 18 (26) ◽  
pp. 17414-17427 ◽  
Author(s):  
Tianlei Zhang ◽  
Chen Yang ◽  
Xukai Feng ◽  
Jiaxin Kang ◽  
Liang Song ◽  
...  
Keyword(s):  
Water Vapor ◽  
Catalytic Effect ◽  
Vapor Molecule ◽  
Effect Of Water ◽  
Water Vapor Molecule ◽  
Water Dimers

Catalyst X (X = H2O, (H2O)2and (H2O)3) is incorporated into the channel of H2S +3O2formation and the catalytic effect of water, water dimers and water trimers is mainly taken from the contribution of a single water vapor molecule.

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