Non-centrosymmetric Solids NCSs

A close analysis of the chlorine-centered ClA6.nMn octahedral SBU (secondary building unit) has revealed that the acentricity of the bulk lattice may be introduced via cation substitution. The di-cation substitution (n=2) in ClNas 

The core further extends via the additional chlorine (light grey) and cesium (solid black circle) ions. 

A recent discovery shows that the lone pair electrons of the chlorine atom can also facilitate the formation of NCS frameworks. A novel family of salt-containing, mixed-metal sihcates (CU-14), Ba6Mii4Sii2034Cl3 and Ba6Fe5Sin034Cl3, was synthesized via the BaCl2 salt-inclusion reaction [6 a]. These compounds crystallize in the NCS space group Pmcli (No. 26), adopting one of the 10 polar, non- 

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To demonstrate the utilities of salt inclusion, we review the selected zeoUte-like transition-metal-containing open frameworks (TMCOFs) and then describe the structures of non-centrosymmetric solids (NCSs) and, finally, report crystalline solids containing a periodic array of transition metal nanostructures. In particular, we will address the issues concerning the role that molten salt has in... 

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