Browsing College of Science by Subject "Crystal structure"
Now showing items 1-9 of 9
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Alternating bimetallic Na/Mn covalent and ionic chains
(RSC, 2010-07-30)The first coordination polymers constructed using the 2,2'-biphenol ligand are described along with their ionic supramolecular counterparts. -
Crystallization of organic salts from the gas phase: When does proton transfer take place?
(American Chemical Society, 2020-12-13)Salt formation with proton transfer is observed in crystals grown by cosublimation of the salt coformers. Diflunisal salts were obtained with 4-[3-(pyridin-4-yl)propyl]pyridine, piperazine, and 4-dimethylaminopyridine. ... -
Effects of ball-milling and cryomilling on sulfamerazine polymorphs: A quantitative study
(Elsevier, 2014-04-11)The effects of ball-milling and cryomilling on sulfamerazine forms I and II (SMZ FI, FII) were investigated using X-ray powder diffraction, infrared and near-infrared (NIR) spectroscopy. Cryomilling resulted in a complete ... -
Hydrogen bonding networks and solid-state conversions in benzamidinium salts
(2015-07-14)Ten benzamidinium salts of carboxylic acids, amides, and sulfonamides have been crystallized from solution. Single-crystal X-ray analyses revealed various hydrogen bonding motifs which ate discussed in terms of supramolecular ... -
Investigating the solid state hosting abilities of homo- and hetero-valent [Co-7] metallocalix[6]arenes
(RSC, 2012)A family of homo-valent [Co(II)(7)(OH)(6)(L-1)(6)](NO3)(2)(1), [(MeOH)(2)subset of Co(II)(7)(OH)(6)(L-1)(6)](NO3)(2) (2) (where L1H = 2-iminomethyl-6-methoxyphenol) and hetero-valent [(NO3)(2)subset of Co(III)Co(II)(6)(O ... -
Manipulating cocrystal size and morphology using a combination of temperature cycling and additives
(American Chemical Society, 2020-11-20)A cooling crystallization of benzoic acid and isonicotinamide in ethanol yields the 1:1 cocrystal with an extreme needle-like morphology with an initial mean aspect ratio of ∼10 and a size of ∼64 μm. We demonstrate that ... -
Phosphate diester cleavage, DNA interaction and cytotoxic Activity of a bimetallic bis(1,4,7-triazacyclononane) zinc complex
(Wiley, 2014-06-24)The dinuclear zinc complex [Zn-2{bcmp(-H)}(mu-Cl)](ClO4)(2)center dot H2O {bcmp = 2,6-bis(1,4,7-triazacyclonon-1-ylmethyl)-4-methylphenol} has been synthesized and structurally characterized. The DNA binding affinity was ... -
Salts, binary and ternary cocrystals of pyrimethamine: mechanosynthesis, solution crystallization and crystallization from the gas phase
(American Chemical Society, 2020-11-24)A series of salts and binary and ternary cocrystals of the antimalaria drug pyrimethamine (PYR) are reported. PYR has a donor–acceptor–donor (DAD) and a donor–acceptor (DA) binding site, and cocrystallization experiments ... -
Sulfamerazine: Understanding the influence of slip planes in the polymorphic phase transformation through X-ray crystallographic studies and ab initio lattice dynamics
(American Chemical Society, 2015-08-28)Understanding the polymorphism exhibited by organic active-pharmaceutical ingredients (APIs), in particular the relationships between crystal structure and the thermodynamics of polymorph stability, is vital for the ...