Engineering Studies

Author(s):  
GARY LEE DOWNEY ◽  
JUAN C. LUCENA
Keyword(s):  
2019 ◽  
Vol 17 ◽  
pp. 56-61
Author(s):  
J.R. González ◽  
◽  
L. Pacheco ◽  
N. Luo ◽  
T. Pujol ◽  
...  

2015 ◽  
Vol 6 (4) ◽  
pp. 445-458
Author(s):  
Magda Abd El-Rahman ◽  
M. Ebaid ◽  
A. Elkeway

2013 ◽  
Vol 8 (2) ◽  
pp. 77-89 ◽  
Author(s):  
Anita Meldrum

2016 ◽  
Vol 72 (9) ◽  
pp. 692-696 ◽  
Author(s):  
Christina A. Capacci-Daniel ◽  
Jeffery A. Bertke ◽  
Shoaleh Dehghan ◽  
Rupa Hiremath-Darji ◽  
Jennifer A. Swift

Hydrogen bonding between urea functionalities is a common structural motif employed in crystal-engineering studies. Crystallization of 1,3-bis(3-fluorophenyl)urea, C13H10F2N2O, from many solvents yielded concomitant mixtures of at least two polymorphs. In the monoclinic form, one-dimensional chains of hydrogen-bonded urea molecules align in an antiparallel orientation, as is typical of many diphenylureas. In the orthorhombic form, one-dimensional chains of hydrogen-bonded urea molecules have a parallel orientation rarely observed in symmetrically substituted diphenylureas.


2003 ◽  
Vol 78 (2) ◽  
pp. 109-117 ◽  
Author(s):  
He Gruber ◽  
Ja Ingram ◽  
K Leslie ◽  
Hj Norton ◽  
En Hanley Jr

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