Exploiting modularity in template-controlled synthesis: a new linear template to direct reactivity within discrete hydrogen-bonded molecular assemblies in the solid state

2001 ◽  
pp. 2462-2463 ◽  
Author(s):  
Giannis S. Papaefstathiou ◽  
Alex J. Kipp ◽  
Leonard R. MacGillivray
2006 ◽  
Vol 59 (9) ◽  
pp. 613 ◽  
Author(s):  
Tomislav Friščić ◽  
Leonard R. MacGillivray

A single crystal to single crystal [2+2] photodimerization has been achieved within a molecular cocrystal composed of finite, hydrogen-bonded molecular assemblies using the absorption-edge irradiation technique. The cocrystal is composed of a resorcinol template and a diolefin reactant that reacts to form a non-symmetrical cyclobutane product. The product is an intermediate in a two-step solid-state synthesis of a [2.2]paracyclophane. The ability to conduct the reaction in a single crystal to single crystal fashion attests to the robustness of the hydrogen-bonded assemblies during the course of the solid-state transformation.


Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 926
Author(s):  
Malose J. Mphahlele ◽  
Eugene E. Onwu ◽  
Marole M. Maluleka

The conformations of the title compounds were determined in solution (NMR and UV-Vis spectroscopy) and in the solid state (FT-IR and XRD), complemented with density functional theory (DFT) in the gas phase. The nonequivalence of the amide protons of these compounds due to the hindered rotation of the C(O)–NH2 single bond resulted in two distinct resonances of different chemical shift values in the aromatic region of their 1H-NMR spectra. Intramolecular hydrogen bonding interactions between the carbonyl oxygen and the sulfonamide hydrogen atom were observed in the solution phase and solid state. XRD confirmed the ability of the amide moiety of this class of compounds to function as a hydrogen bond acceptor to form a six-membered hydrogen bonded ring and a donor simultaneously to form intermolecular hydrogen bonded complexes of the type N–H···O=S. The distorted tetrahedral geometry of the sulfur atom resulted in a deviation of the sulfonamide moiety from co-planarity of the anthranilamide scaffold, and this geometry enabled oxygen atoms to form hydrogen bonds in higher dimensions.


2000 ◽  
Vol 104 (49) ◽  
pp. 11801-11804 ◽  
Author(s):  
Takashi Ikeda ◽  
Michiel Sprik ◽  
Kiyoyuki Terakura ◽  
Michele Parrinello

1997 ◽  
Vol 7 (7) ◽  
pp. 1111-1122 ◽  
Author(s):  
Kumar Biradha ◽  
Ashwini Nangia ◽  
Gautam R. Desiraju ◽  
C. J. Carrell ◽  
H. L. Carrell

2018 ◽  
Vol 140 (14) ◽  
pp. 4940-4944 ◽  
Author(s):  
Qianli Chu ◽  
Andrew J. E. Duncan ◽  
Giannis S. Papaefstathiou ◽  
Tamara D. Hamilton ◽  
Manza B. J. Atkinson ◽  
...  

2019 ◽  
Vol 43 (23) ◽  
pp. 9090-9105 ◽  
Author(s):  
Kannan Ramamurthy ◽  
E. J. Padma Malar ◽  
Chellappan Selvaraju

Fluorescence emission spectrum of ketocoumarin dimers in an alcohol:water binary mixture and the solid state.


Author(s):  
Leonard R. MacGillivray ◽  
Giannis S. Papaefstathiou ◽  
Tomislav Friščić ◽  
Dushyant B. Varshney ◽  
Tamara D. Hamilton

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