Single-crystal to single-crystal transformation of a coordination chain to a two-dimensional coordination network through a photocycloaddition reaction
UV irradiation of a unique ladder-like coordination polymer affords a two-dimensional coordination network through single-crystal to single-crystal photocycloaddition reaction.
Detection of hydroxyl and hydride functional groups in a ceria crystal under hydrogen reduction
Neutron powder diffraction analysis revealed that ceria transformed into the oxyhydroxide structure by hydrogen treatment.
A GeSe micro air brick crystal-based film for the sunlight photodegradation of dye-polluted waters
Pinkish purple rhodamine B polluted water was efficiently photodegraded into colorless by the GeSe MAB crystal-based film under sunlight irradiation.
Snowflake porous multi-metal oxide nanocatalysts from metallocene@metal organic framework precursors
Snowflake metallocene@MOF-derived ammonia catalyst.
Stabilizing photo-sensitive colchicine through rebalancing electron distribution of the reactive tropolone ring
Photo-sensitive tropolone was stabilized by rebalancing the electron distribution of the reactive system.
Critical behavior in hexagonal Y2Fe17: magnetic interaction crossover from 3D to 2D Ising model
The critical properties study of hexagonal Y2Fe17 indicates that its phase transition behavior reveals a crossover from 3D to 2D Ising model and the DFT calculations uncover that the four kinds occupations of Fe atoms determine the critical phase transition.
Solubility improvement of curcumin with amino acids
Eutectic, co-amorphous, cocrystal, and physical mixtures of curcumin with basic amino acids are prepared and characterized by PXRD, DSC, NMR, FT-IR, and SEM; solubility and dissolution improvement achieved in 40% ethanol–water system.
LPE growth of Tb3Al5O12:Ce single crystalline film converters for WLED application
Efficient phosphor converters for white LEDs based on TbAG:Ce single crystalline films, LPE grown onto YAG substrates, is developed. The film-substrate interface of TbAG:Ce SCF/YAG epitaxial structures was studied using high-resolution STEM images.
Crystal-to-crystal transformation of a new selenite compound CaNi2(SeO3)3·2H2O induced by dehydration
A new zemannite-like compound CaNi2(SeO3)3·2H2O (1) is found to exhibit crystal-to-crystal transformations upon heating, resulting in a dehydrated form of CaNi2(SeO3)3·1.5H2O (2) and an anhydrous form of CaNi2(SeO3)3 (3).
Influence of solution chemistry on the solubility, crystallisability and nucleation behaviour of eicosane in toluene : acetone mixed-solvents
Compositionally dependent solution structure is found to influence the solubility, crystallisability and nucleation mechanism of eicosane when crystallising from toluene : acetone mixed-solvent solutions.
Controlled preparation of micro–nano hierarchical hollow calcium carbonate microspheres by pressurized-CO2 carbonization and their CaCO3:Eu3+ photoluminescence properties
Herein, calcium carbonate hollow microspheres with a micro–nano hierarchical structure were successfully synthesized using disodium salt of ethylenediaminetetraacetic acid (EDTA-2Na) as an additive, by bubbling pressurized carbon dioxide and calcium hydroxide at 120 °C.
Effects of ligand functionalization on the band gaps and luminescent properties of a Zr12 oxo-cluster based metal–organic framework
Herein, effective optical band gap engineering of a robust Zr12 oxo-based hcp UiO-66 has been realized through linker functionalization.
A review of solvent freeze-out technology for protein crystallization
In this review, we summarize important advances in solvent freeze-out (SFO) technology for protein crystallization, including the background of SFO, its fundamental principle, and some crucial conditions and factors for optimizing SFO technology.
Alkyl-substituted bis(4-((9H-fluoren-9-ylidene)methyl)phenyl)thiophenes: weakening of intermolecular interactions and additive-assisted crystallization
Effect of alkyl substituents and an additive on crystallization and intermolecular interactions of bis(4-((9H-fluoren-9-ylidene)methyl)phenyl)thiophenes is revealed.
Uncovering new transition metal Zintl phases by cation substitution: the crystal chemistry of Ca3CuGe3 and Ca2+nMnxAg2−x+zGe2+n−z (n = 3, 4)
Crystal engineering in transition metal Zintl phases.
A series of A- and B-type Anderson compounds with Al, Te and Cr as centers by tuning different ligands: syntheses, electrochemical, photocatalytic and CO2RR properties
A series of N- and N/O-containing ligands were used, inducing the 2D structures of compounds 1, 3, 4 and 6, a discrete unit containing the tri-nuclear [CuII3(tybm)3(H2O)4]6+ cluster of 2, and a 3D framework of 5.
Crystallographic tomography and molecular modelling of structured organic polycrystalline powders
Novel combination of crystallographic tomography and molecular modelling is used to examine the powder packing behaviour and crystal interactions for an organic polycrystalline powder bed.
Synthesis and supramolecular organization of the iodide and triiodides of a polycyclic adamantane-based diammonium cation: the effects of hydrogen bonds and weak I⋯I interactions
Adamantane-like divalent building blocks and iodide or polyiodide anions combine into supramolecular architectures with the help of various noncovalent forces ranging from strong hydrogen bonds to secondary and weak I⋯I interactions.
Modification of hygroscopicity and tabletability of L-carnitine by a cocrystallization technique
LC-MYR cocrystal with significant enhanced dissolution,tabletability and decreased hygroscopicity is more suitable for manufacturing solid dosage forms.
Growth manner of rod-shaped ZnO crystals at low temperature without any seed/buffer layer on a polyimide film
Recently, we fabricated a rod-shaped ZnO crystal layer directly on a polyimide substrate without any intermediate layer. In this study, we aimed to understand its fabrication mechanism.
La6Cd0.75Ga2Q11.5Cl2.5 (Q = S and Se): two new nonlinear optical chalcohalides with a large laser-induced damage threshold
Two new nonlinear optical chalcohalides La6Cd0.75Ga2Q11.5Cl2.5 (Q = S and Se) with good NLO performance are reported, which shows the benefits of the introduction of Cl-atoms in enhancing polarization and LIDTs.
Optimizing the morphology of calcium D-pantothenate by controlling phase transformation processes
A process for preparing calcium D-pantothenate tetramethanol monohydrate (D-PC·4MeOH·H2O) with a block-like morphology was developed, the solvent-free D-PC with a block-like morphology was obtained by controlling the de-solvation of D-PC·4MeOH·H2O.
A straightforward one-pot approach to two new defect energy levels in ZnS
ZnS with double defect energy levels shows an amazing visible light photoactivity.
Guanidinium sulfates as directors of noncentrosymmetric structures
Guanidinium sulfate hydrogen bonding networks are found to have a remarkable tendency to crystallize in noncentrosymmetric, chiral, and polar frameworks.
Mechanism of stacking fault annihilation in 3C-SiC epitaxially grown on Si(001) by molecular dynamics simulations
Stacking fault annihilation mechanism in 3C-SiC epitaxially grown on Si(001) is studied by molecular dynamics simulations and its implications for improvement of 3C-SiC characteristics are provided.
A small molecule with a big scissoring effect: sodium dodecyl sulfate working on two-dimensional metal–organic frameworks
In this paper, a SDS-directed solution method was developed to synthesize a series of well-dispersed two-dimensional non-layered metal–organic frameworks (MOFs) (ZIF-8 & ZIF-67) and layered MOFs (ZnTCPP & CuBDC).
The impact of solid solution composition on kinetics and mechanism of [2 + 2] photodimerization of cinnamic acid derivatives
The effect of the solid solution composition on the kinetics of solid-state [2 + 2] photocycloadditions was evaluated via a combination of single crystal XRD, FTIR, Raman spectroscopy, and principal component analysis (PCA).
From pipemidic acid molecular salts to metal complexes and BioMOFs using mechanochemistry
Mechanochemistry has proven to be an excellent sustainable, efficient and fast tool for the discovery of new crystal forms of old drugs.
Exploration of two-dimensional perovskites incorporating methylammonium for high performance solar cells
We investigated the structural and optical properties of various 2-dimensional perovskites by incorporating them into a 3-dimensional (3D) perovskite (CH3NH3PbI3) to address the disadvantages of the existing 3D perovskite.
Evaluation of focused beam reflectance measurement (FBRM) for monitoring and predicting the crystal size of carbamazepine in crystallization processes
Pharmaceutical crystallization affects the properties of APIs as it determines the purity and crystal size distribution, among other attributes. This work presents two CLD–CSD models, theoretical and empirical, for a model compound.
Dimensional reduction upon calcium incorporation in Cs0.3(Ca0.3Ln0.7)PS4 and Cs0.5(Ca0.5Ln0.5)PS4
A series of Ca-containing lanthanide thiophosphates has been obtained and their structural evolution from 3D for LnPS4 and Cs0.3(Ln0.7Ca0.3)PS4 to 2D in Cs0.5(Ln0.5Ca0.5)PS4 was shown as a function of Ca content.
The reactive compatibilization of PLA/PP blends and improvement of PLA crystallization properties induced by in situ UV irradiation
The crystallization rate of PLA in PLA/PP blends increased after reactive compatibilization during a reactive extrusion process.
Cocrystals of regorafenib with dicarboxylic acids: synthesis, characterization and property evaluation
Three cocrystals of regorafenib were synthesized, and two of them demonstrate significantly improved solubility and tabletability without compromising physicochemical stability.
Investigation of Yb:CaWO4 as a potential new self-Raman laser crystal
High-quality Yb:CaWO4 crystal was grown using the Czochralski method; laser action and self-Raman conversion were demonstrated.
Taking advantage of solvate formation to modulate drug–drug ratio in clofaziminium diclofenac salts
Clever solvent selection allows crystallization of a great structural variety of (un)solvated salts combining clofazimine and diclofenac.
Effect of N-salicylidene hydrazide protonation on the solid state structural diversity of its Cu(II), Ni(II) and Zn(II) complexes
Study of the effect of ligand protonation on the structural diversity of Cu(II), Ni(II) and Zn(II) compounds constructed from a N-salicylidenehydrazide Ligand.
Multicomponent crystals of baclofen with acids and bases—conformational flexibility and synthon versatility
Crystals of baclofen with acidic or basic coformers suggest that the robustness of the hydrogen bonding between the adjacent baclofen molecules aids the formation of the alternating hydrophilic and hydrophobic layers in the crystal structures.
Finely modified crystallites of unsubstituted zinc phthalocyanine for film deposition purposes
The modified dye crystallites are elastic, thus being capable of spontaneous spreading and seamless fusion.
Enhanced solubility, permeability, and tabletability of nicorandil by salt and cocrystal formation
Cocrystallization is a rational selection crystal engineering approach for the development of novel solid forms with enhanced physicochemical and mechanical properties.
About this collection
The latest research on Crystal Engineering Techniques published in CrystEngComm.