caa a22 4500 378943464 CHVBK 20180305123658.0 cr unu---uuuuu 161128e20040901xx s 000 0 eng 10.1524/zkri.219.9.567.44043 doi (NATIONALLICENCE)gruyter-10.1524/zkri.219.9.567.44043 Rathore Ravindranath S. Study on β-sheet packing, stabilized by aromatic interactions in a tri-peptide crystal [Elektronische Daten] [Ravindranath S. Rathore] The role of unconventional aromatic interactions in the β-sheet packing, inside the crystal, has been highlighted. Crystal structure of terminally blocked tri-peptide, Z-L-Ala-L-Ala-L-Leu-pNA has been determined. There are four different conformers of tri-peptide inside the unit-cell, in space group P1. All the four independent molecules are described by semi-extended backbone conformations which form an anti-parallel β-sheet. The inter β-sheet packing is predominantly stabilized by C—H π and π π interactions. In π π interactions, the center-to-center distance between aromatic rings varies from 3.8 Å to 4.6 Å while the closest distance of approach ranges from 3.4 Å to 3.8 Å. The associations of aromatic-aromatic rings are described by either face-to-face or inclined arrangements. © 2004 Oldenbourg Wissenschaftsverlag GmbH Crystallography nationallicence Inorganic chemistry nationallicence Organic chemistry nationallicence Zeitschrift für Kristallographie - Crystalline Materials De Gruyter Oldenbourg 219/9(2004-09-01), 567-572 2194-4946 219:9<567 2004 219 zkri https://doi.org/10.1524/zkri.219.9.567.44043 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1524/zkri.219.9.567.44043 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Rathore Ravindranath S. NATIONALLICENCE 773 0- Zeitschrift für Kristallographie - Crystalline Materials De Gruyter Oldenbourg 219/9(2004-09-01), 567-572 2194-4946 219:9<567 2004 219 zkri CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter