Synthesis and Characterization of Charge-transfer Complexes of Aminoethylphosphono-and Dimethylaminoethylphosphono-heteropolytungstic Acids of Keggin Type Structure

Two charge-transfer complexes of 2a and 2b of Keggin type were synthesized and characterized by elemental analysis, IR spectra, UV spectra, XRD, TG-DSC; and were compared with Hquin-PW12. The primary structure of the heteropolyanions had not been changed after the formation of the charge transfer complexes.

买椟还珠

一楚人有卖其珠于郑者,为木兰之柜,薰以桂椒,缀以珠玉,饰以玫瑰,辑以翡翠,郑人买其椟而还其珠。此可谓善卖椟矣,未可谓善鬻珠也。——韩非《韩非子·外储说左上》二1975年,法国,一个超市门前,人们排队等待购买来自中国的成鸭蛋。终于人群沸腾,人们争先恐后,将一坛坛成鸭蛋抢购一空。在超市的旁边有个专供的大水池,许多人将鸭蛋倒入池中,将罐子精心清洗干净,然后放在家中最醒目的位置:"先生们,来自中国的,精美的瓷器。"