Tris(hydroxypropyl)phosphine Oxide: A Chiral 3D Material with Non-linear Optical Properties
Alec C. Durrell, Harry B. Gray, Nilay Hazari,* Christopher D. Incarvito, Jian Liu and Elsa C. Y. Yan
The achiral C3v organic phosphine, tris(hydroxypropyl)phosphine oxide, crystallizes in the unusual chiral hexagonal space group
P63. The structure is highly ordered because each phosphine oxide moiety forms three hydrogen bonds with adjacent hydroxy groups from three different molecules. The properties of the crystals and the presence of hydrogen bonding interactions were investigated using single crystal Raman spectroscopy. The crystals show non-linear optical properties and are capable of efficient second harmonic generation.
Reshaping the Synthesis of Porous Crystals for Molecular Storage and Separations
Adam Matzger University of Michigan
Adsorbents play a critical role in a variety of
industrial, laboratory and consumer applications. Materials such as silica gel,
zeolites, and activated carbon have been investigated for centuries and
represent the most commonly used adsorbents. In the last decade new structurally
defined high surface area materials based on coordination chemistry have
emerged. These inorganic-organic hybrid materials are promising to redefine the
types of processes and applications that can be enabled by adsorption. Synthetic
challenges, structural characterization, and novel approaches relating to
microporous coordination polymers (MCPs) will be discussed. Recent progress with
coordination copolymerization and reduced symmetry linkers will be presented in
the context of ultrahigh surface area materials. Application of MCPs for storage
of gases will be emphasized followed by novel applications in liquid phase
separation.
