Anahid Saneei - Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
Mehrdad Pourayoubi - Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
Aurelien Crochet - Fribourg Centre for Nanomaterial’s, FriMat, University of Fribourg, Chemin du Musée ۳, CH-۱۷۰۰ Fribourg, Switzerland

Hirshfeld surfaces and 2D fingerprint plots are used to analysis of intermolecular interactions in two new amidophosphinates: (2–Cl–C6H4O)P(O)[X]2 {X = NHC5H10 (I), [X]2= NHCH2CH2CH2NH (II)}. The N—H…O═P hydrogen bonds are the characteristic interaction in both structures and appear as two very large red spots in the Hirshfeld surface maps. The pairs of long spikes in the corresponding fingerprint plots are related to the O…H contacts and the points around 2.2 Å correspond to the N—H…O═P hydrogen bonds in both structures.

Hirshfeld surface analysis, Finger print plot, Amidophosphinate, Crystal structure