The title compound, C(26)H(28)NO(3)P, crystallized with two independent mol-ecules in the asymmetric unit. The structural features (bond lengths and angles) of the two mol-ecules are almost identical. The inter-planar angle between the anthracene and toluidine rings is similar in the two mol-ecules, with values of 82.92 (5) and 80.70 (5)°. In the crystal, both molecules form inversion dimers linked by pairs of N-H⋯O hydrogen bonds. Three of the four ethyl groups are disordered over two sets of sites, the major components having occupancies of 0.748 (15), 0.77 (4) and 0.518 (19).
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3213438 | PMC |
http://dx.doi.org/10.1107/S1600536811025943 | DOI Listing |
Acta Crystallogr E Crystallogr Commun
September 2024
Department of Chemistry Grand Valley State University,Allendale MI 49401 USA.
The mol-ecular structure of the tripodal carbamoyl-methyl-phosphine oxide compound diethyl {[(5-[2-(di-eth-oxy-phosphor-yl)acetamido]-3-{2-[2-(di-eth-oxy-phos-phor-yl)acetamido]-eth-yl}pent-yl)carbamo-yl]meth-yl}phospho-nate, CHNOP, features six intra-molecular hydrogen-bonding inter-actions. The phospho-nate groups have key bond lengths ranging from 1.4696 (12) to 1.
View Article and Find Full Text PDFIUCrdata
February 2022
Crystal Engineering, Growth and Design Laboratory, Department of Chemistry, University of Crete, Voutes Campus, Crete, GR-71003, Greece.
The new triazole-functionalized phospho-nic acid 5-phenyl-3-(2-phosphono-eth-yl)-1,2,3-triazol-1-ium chloride, CHNOP·Cl (PTEPHCl), was synthesized by the 'click' reaction of the alkyl azide diethyl-(2-azido-eth-yl)phospho-nate with phenyl-acetyl-ene to give the dieth-yl[2-(4-phenyl-1-1,2,3-triazol-1-yl)eth-yl]phospho-nate ester, which was then hydrolyzed under acidic conditions (HCl) to give the 'free' phospho-nic acid. The use of HCl for the hydrolysis caused protonation of the triazole ring, rendering the compound cationic, charged-balanced by a Cl anion. There are extensive hydrogen-bonding inter-actions in the structure of PTEPHCl, involving the phospho-nic acid (-POH) group, the triazolium ring and the Cl anion.
View Article and Find Full Text PDFIUCrdata
June 2021
University of Mainz, Institut for Organic Chemistry, Duesbergweg 10-14, 55099 Mainz, Germany.
The title compound, CHIOP, was prepared in three steps from -xylene. Heterodimers between nearly identical mol-ecules are connected three hydrogen bonds from benzylic and ester methyl-ene groups to phospho-nate. The dimers form chains along the -axis direction, stabilized by C-H⋯O bridges.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
July 2019
Department of Chemistry, Grand Valley State University, 1 Campus Dr., Allendale, MI 49401, USA.
Two bis-carbamoyl-methyl-phosphine oxide compounds, namely {[(3-{[2-(di-phen-yl-phosphino-yl)ethanamido]-meth-yl}benz-yl)carbamo-yl]meth-yl}di-phenyl-phos-phine oxide, CHNOP, (I), and diethyl [({2-[2-(di-eth-oxy-phosphino-yl)ethanamido]-eth-yl}carbamo-yl)meth-yl]phospho-nate, CHNOP, (II), were synthesized nucleophilic acyl substitution reactions between an ester and a primary amine. Hydrogen-bonding inter-actions are present in both crystals, but these inter-actions are intra-molecular in the case of compound (I) and inter-molecular in compound (II). Intra-molecular π-π stacking inter-actions are also present in the crystal of compound (I) with a centroid-centroid distance of 3.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
July 2018
Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, Kyiv 01601, Ukraine.
In the title phospho-rylated compound, CHClNOP, the phthalimide unit is essentially planar (r.m.s.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!