| In this paper, five unreported compounds have been synthesized by utilizing thepre-synthesized NaB3B[AlMoB6BHB6BOB24B]·8HB2BO and (NHB4B)B6B[HB2BWB12BOB40B]·3HB2BO clusters as precursorsand adjusting reaction conditions and reaction materials via water solution synthesis methods.These compounds are structurally characterized by elemental analyses, IR, TG and singlecrystal X-ray diffractions. The magnetic properties of 2 and 3, the UV-vis properties of 5 havebeen studied.1. One compound has been gained, based on [AlMoB6BHB6BOB24B]PP polyoxoanions as the basicbuilding blocks, through interaction between organic molecules piperazine, sulfate ion, aswell as water:(HB2BPz)B5B[Al(OH)B6BMoB6BOB18B]B2B(SOB4B)B2B·16HB2BO (Pz=Piperazine) (1)Compound 1 is based on Anderson-B-type anion and piperazine. Unlike otherpolyoxoanionthe Anderson-B type anion acts as a hydrogen bond donor recurring to thehydrogen atom itself. The hydrogen bond interaction is formed in the crystal structure of themajor forces between molecules. SOB4PBP ions plays an important role in the formation of layerstructure. Through the discussion of compound 1, we have confirmed that Hirshfeld surfacesand 2D fingerprint plot diagram is a very valuable, visual and rapid tools for the analysis ofthe intermolecular forces in polyoxometalate inorganic-organic hybrid compound.2. With the [HB2BWB12BOB40B]PP clusters(WB12B) as the basic building unit, using rare-earth ions ortransition metal silver ions, pyridine 2,6-dicarboxylic acid (HB2BM), and pyridine3,5-dicarboxylic acid ( HB2BN) as organic ligands four high-dimensional structure of compoundswere synthesized:[SmB3B(HM)(M)(HB2BO)B13B(HB2BWB12BOB40B)]·13HB2BO (2)[GdB3B(HM)(M)(HB2BO)B13B(HB2BWB12BOB40B)]·13HB2BO (3)[{EuB2B(HB2BN)(HN)(HB2BO)B10B}H{(HB2BWB12BOB40B)}]·5HB2BO (4)[{Ag(HB2BO)B5B}B2BHB4B{HB2BWB12BOB40B}]B2B·28HB2BO (5)Compounds 2 and 3 are isostructural, and WB12B, Ln ions and HB2BM/HB2BN constructe atwo-dimensional layered structure and, through multiple hydrogen bonds the layers form athree-dimensional network structure. In these two compounds there is a 4Ln-ring and 6Lncluster. Magnetic properties showed that compound 2 and 3 have very weakanti-ferromagnetic interactions. 4 is a two-dimensional layered compound knot structurethrough HB2BN ligand and Eu2 atoms are linked into 2D structures. 5 is a pure inorganic 3Dnetwork structure compounds, the 3D structure can be rationalized as 4 connecting networkwith the diamond network 6P topology if we assign the [HB2BWB12BOB40B]P6-P clusters as the nodes and the Ag atoms as the connectors. |
