STUDY FINDINGS ON CRYSTALLOGRAPHY ARE OUTLINED IN REPORTS FROM H.A. KARAPETYAN AND COLLEAGUES

Technology News Focus
January 14, 2009

"The title compound, K+center dot C6H9N4O4-center dot H2O, crystallizes
with the K atoms located on special positions related by pseudocentres
of symmetry," scientists in Yerevan, Armenia report.

"Each K atom is coordinated by six O-atom donors. The N and water H
atoms are involved in inter- and intramolecular N-H center dot center
dot center dot O, N-H center dot center dot center dot N and O-H center
dot center dot center dot O hydrogen bonding," wrote H.A. Karapetyan
and colleagues.

The researchers concluded: "The data indicate inversion twinning."

Karapetyan and colleagues published their study in Acta
Crystallographica Section E – Structure Reports Online (Potassium
L-2-nitrimino-1,3-diazepane-4-carboxyla te monohydrate. Acta
Crystallographica Section E – Structure Reports Online, 2008;64(Part
11):M1369-U211).

For more information, contact H.A. Karapetyan, National Academy
Science RA, Molecular Structural Research Center, Azatutyan Avenue 26,
Yerevan 375014, Armenia.

Publisher contact information for the journal Acta Crystallographica
Section E – Structure Reports Online is: Blackwell Publishing, 9600
Garsington Rd., Oxford OX4 2DQ, Oxon, England.