The butterfly-like tetranuclear cobalt cluster based 3D MOF [Me2NH2][Co2(bptc)(μ3-OH)(H2O)2] (1) underwent a reversible thermally triggered single-crystal-to-single-crystal transformation via Co-Owater weakened intermediate 1a to produce a partly dehydrated phase [Me2NH2][Co2(bptc)(μ3-OH)(H2O)] (2), which was confirmed by single-crystal X-ray diffraction, powder X-ray diffraction, thermogravime...

Geometrical design of the spiral crystal selector can affect crystal orientation in the final single crystal structure. To achieve a better understanding of conditions associated with the onset of crystal orientation in a spiral crystal selector, temperature field was investigated using three-dimensional finite element method during the process. Different geometries of spiral crystal selec...

the structure of n,n'-bis(2-hydroxybenzylidene)-2,2-dimethyl-1,3-propanediamine, c19h22n2o2, has been studied at low temperature (120k) by means of single-crystal x-ray diffraction. solving the structure shows an orthorhombic unit cell, with p212121 space group, z = 4, a = 6.1046 (4) å, b = 15.8349 (11)å, c = 17.2898 (12) å and v = 1671.3 (2) å3. there are two relatively strong hydrogen bonds (...

Abstract Co-crystals can improve the physicochemical properties of pharmaceutical active ingredients, and thus have great potential in improving drug performance. Some studies obtained powder spectrum co-crystal flurbiprofen (FBP) salicylamide (2-OHBZA) but not a single-crystal structure. In this study, co-crystals FBP-2-OHBZA with molar ratio 1:1 were by slow evaporation using ethyl acetate te...

Supported metal nanoparticles form the basis of heterogeneous catalysts. Above a certain nanoparticle size, it is generally assumed that adsorbates bond in an identical fashion as on a semiinfinite crystal. This assumption has allowed the database on metal single crystals accumulated over the past 40 years to be used to model heterogeneous catalysts. Using a surface science approach to CO adsor...

The present study explores the possibility to synthetize, using supercritical fluid, single crystal of co-crystal formed by mefenamic acid as active pharmaceutical ingredient and nicotinamide a co-former. growth crystals is important for determination structure in particular, ones whose unit cells contain large number atoms, it becomes crucial. For this purpose, we analyzed effect temperature, ...

Solvent-induced chiral single-crystal to achiral single-crystal structural transformation is presented by two isomeric amino-functionalized metal-organic frameworks with 2-fold interpenetrating diamond topology, and the achiral form has high CO(2) uptake capacity.