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XY Huang

Publications and source records attributed to XY Huang.

4 recordsLinked to original sources
PubMed2000

Molecular building blocks for solid-state chalcogenides: solvothermal synthesis of

Two new molecular metal chalcogenides, tris(ethylenediamine-N, N')manganese(II) tetratelluride, [Mn(C(2)H(8)N(2))(3)]Te(4), (I), and bis[tris(ethylenediamine-N,N')iron(II)] pentaselenodiantimonate(III), [Fe(C(2)H(8)N(2))(3)](2)(Sb(2)Se(5)), (II), containing the isolated molecular building blocks Te(4)(2-) and Sb(2)Se(5)(4-), have been synthesized by solvothermal reactions in an ethylenediamine solution at 433 K. The anion Te(4)(2-) in (I) is a zigzag oligometric chain with Te-Te bond lengths in the range 2. 709-2.751 A. There is a very short contact [3.329 (1) A] between a pair of neighboring Te(4)(2-) anions. In (II), each Sb atom is surrounded by three Se atoms to give a tripodal coordination. One of the three independent Se atoms is a &mgr;(2)-bridging ligand between two Sb atoms; the other two are terminal.

Journal Article↗
PubMed2000

3,5-Pyrazoledicarboxylic acid monohydrate

In the title compound, C(5)H(4)N(2)O(4).H(2)O, the 3, 5-pyrazoledicarboxylic acid (H(3)pdc) molecules are joined into one-dimensional chains by O-H.O and N-H.O hydrogen bonds, with distances of 2.671 (2) and 2.776 (2) A, respectively. The one-dimensional chains form a three-dimensional structure via O-H.OW and OW-HW.N hydrogen bonds, with distances of 2.597 (3) and 2.780 (3) A, respectively. In addition to the potential for forming open-channel frameworks, access to the six coordination atoms of H(3)pdc can be directly controlled by varying the pH of the reaction environment, allowing further control over the design and synthesis of novel coordination polymers using various metal centers.

Journal Article↗