Hydrogen-bonded binding of DNA pyrimidine bases to copper(ii) cations co-ordinated by polymethylene linked bis(amidino-O-alkylurea) ligands to form supramolecular architectures

CrystEngComm ◽  
2004 ◽  
Vol 6 (15) ◽  
pp. 70 ◽  
Author(s):  
Unchulee Suksangpanya ◽  
Alexander J. Blake ◽  
Peter Hubberstey ◽  
Claire Wilson
Keyword(s):  
Supramolecular Architectures ◽  
Pyrimidine Bases ◽  
Hydrogen Bonded

Supramolecular architectures in cytosinium 6-chloronicotinate monohydrate and 5-bromo-6-methylisocytosinium hydrogen sulfate

2018 ◽  
Vol 74 (3) ◽  
pp. 325-331
Author(s):  
Robert Swinton Darious ◽  
Nithianantham Jeeva Jasmine ◽  
Ammasai Karthikeyan ◽  
Packianathan Thomas Muthiah ◽  
Franc Perdih
Keyword(s):  
Hydrogen Bonds ◽  
Pyrimidine Ring ◽  
Hydrogen Sulfate ◽  
X Ray Diffraction ◽  
Sulfate Ion ◽  
Sulfate Ions ◽  
Supramolecular Architectures ◽  
Hydrated Salt ◽  
Sheet Structure ◽  
Hydrogen Bonded

Aminopyrimidine derivatives are biologically important as they are components of nucleic acids and drugs. The crystals of two new salts, namely cytosinium 6-chloronicotinate monohydrate, C4H6N3O+·C6H3ClNO2−·H2O, (I), and 5-bromo-6-methylisocytosinium hydrogen sulfate (or 2-amino-5-bromo-4-oxo-6-methylpyrimidinium hydrogen sulfate), C5H7BrN3O+·HSO4−, (II), have been prepared and characterized by single-crystal X-ray diffraction. The pyrimidine ring of both compounds is protonated at the imine N atom. In hydrated salt (I), the primaryR22(8) ring motif (supramolecular heterosynthon) is formedviaa pair of N—H...O(carboxylate) hydrogen bonds. The cations, anions and water molecule are hydrogen bonded through N—H...O, N—H...N, O—H...O and C—H...O hydrogen bonds, formingR22(8),R32(7) andR55(21) motifs, leading to a hydrogen-bonded supramolecular sheet structure. The supramolecular double sheet structure is formedviawater–carboxylate O—H...O hydrogen bonds and π–π interactions between the anions and the cations. In salt (II), the hydrogen sulfate ions are linkedviaO—H...O hydrogen bonds to generate zigzag chains. The aminopyrimidinium cations are embedded between these zigzag chains. Each hydrogen sulfate ion bridges two cationsviapairs of N—H...O hydrogen bonds andvice versa, generating twoR22(8) ring motifs (supramolecular heterosynthon). The cations also interact with one anotherviahalogen–halogen (Br...Br) and halogen–oxygen (Br...O) interactions.

Novel Hydrogen-bonded Three-dimensional Supramolecular Architectures Containing 2D Honeycomb Networks or 2D Grids

2006 ◽  
Vol 24 (10) ◽  
pp. 1352-1358 ◽  
Author(s):  
Dong-Sheng Li ◽  
Cai-Hua Zhou ◽  
Yao-Yu Wang ◽  
Feng Fu ◽  
Ya-Pan Wu ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Supramolecular Architectures ◽  
Hydrogen Bonded

Hydrogen-bonded supramolecular architectures based on [Zr(C2O4)4]4−anion and protonated polyamine cations

CrystEngComm ◽  
2017 ◽  
Vol 19 (12) ◽  
pp. 1633-1642 ◽  
Author(s):  
Monia Hamdouni ◽  
Siwar Walha ◽  
Carine Duhayon ◽  
Ahlem Kabadou ◽  
Jean-Pascal Sutter
Keyword(s):  
Supramolecular Architectures ◽  
Hydrogen Bonded

Hydrogen bonded supramolecular architectures of organic salts based on 5,7-dimethyl-1,8-naphthyridine-2-amine and acidic compounds

2010 ◽  
Vol 975 (1-3) ◽  
pp. 128-136 ◽  
Author(s):  
Shouwen Jin ◽  
Wenbiao Zhang ◽  
Li Liu ◽  
Hongfang Gao ◽  
Daqi Wang ◽  
...  
Keyword(s):  
Organic Salts ◽  
Supramolecular Architectures ◽  
Acidic Compounds ◽  
Hydrogen Bonded

Tailor-made naphthyridines: Self-assembling multiple hydrogen-bonded supramolecular architectures from dimer to helix

2007 ◽  
Vol 846 (1-3) ◽  
pp. 97-107 ◽  
Author(s):  
Shyamaprosad Goswami ◽  
Swapan Dey ◽  
John F. Gallagher ◽  
Alan J. Lough ◽  
Santiago García-Granda ◽  
...  
Keyword(s):  
Supramolecular Architectures ◽  
Self Assembling ◽  
Hydrogen Bonded
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