SrP N NH：一种具有结构导向氢键的框架型亚氨基二膦酸盐。
SrP N NH: A Framework-Type Imidonitridophosphate Featuring Structure-Directing Hydrogen Bonds.
机构信息
Department of Chemistry, University of Munich (LMU), Butendandtstrasse 5-13, 81377, Munich, Germany.
出版信息
Chemistry. 2018 Sep 20;24(53):14275-14281. doi: 10.1002/chem.201803210. Epub 2018 Aug 31.
Nitridophosphates and imidonitridophosphates show intriguing structural diversity, including unprecedented structure types. Highly condensed strontium imidonitridophosphate SrP N NH has been synthesized at 8 GPa and 1100 °C using a high-pressure high-temperature approach starting from stoichiometric amounts of Sr(N ) , P N and NH Cl. Herein, NH Cl was used as a hydrogen source and as a precursor for in situ formation of SrCl , which acts as mineralizer and facilitates growth of single-crystals with a diameter of ≤30 μm. SrP N NH (P2 /c (no. 14), a=5.01774(2), b=8.16912(4), c=12.70193(5) Å, β=101.7848(3)°, Z=4) adopts an unprecedented network structure, represented by the point symbol (3.4.5.6.7 )(3.4.5.7 .8)(3.6.7 .8). This unique three nodal P/N(H) network is stabilized by moderately strong hydrogen bonds causing a structure-directing effect, which has not yet been reported for imidonitridophosphates.
氮磷化合物和亚氨基氮磷化合物表现出有趣的结构多样性，包括前所未有的结构类型。使用高压高温方法，从化学计量的 Sr(N ) 、P N 和 NH Cl 起始原料，在 8 GPa 和 1100℃下合成了高度缩合的锶亚氨基氮磷化合物 SrP N NH 。在此，NH Cl 被用作氢源和原位形成 SrCl 的前体，SrCl 作为矿化剂并促进单晶生长，单晶直径≤30μm。SrP N NH（P2 /c（编号 14），a=5.01774(2)，b=8.16912(4)，c=12.70193(5)Å，β=101.7848(3)°，Z=4）采用了前所未有的网络结构，用点符号表示为(3.4.5.6.7 )(3.4.5.7.8)(3.6.7.8)。这种独特的三节点 P/N(H)网络由适度强的氢键稳定，产生结构导向效应，这在亚氨基氮磷化合物中尚未报道过。
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