Kang Shi

A Giant Silver Alkynyl Cage with Sixty Silver(I) Ions Clustered around Polyoxometalate Templates

Natural Science Foundation of China [20973135, 20771091, 20773101, 20721001]; Ministry of Education [NCET-06-0563]

[Ag(70)(PW(9)O(34))(2)((t)BuC[triple bond, length as m-dash]C)(44)(H(2)O)(2)](8+): ionothermal synthesis of a silver cluster encapsulating lacunary polyoxometalate ions.

A silver alkynyl cluster containing a Ag70 shell and two lacunary [PW9O34](9-) templating ions was synthesized by an ionothermal approach. Fast core-shell electronic communication between silver(i) centers and polyoxometalates was verified via cyclic voltammetry studies in [BMIm]BF4.

Confined etchant layer technique (CELT) for micromanufacture

Confined etchant layer technique (CELT) is an electro-and/ or photo- chemically induced chemical etching method for micromanufacture originated by our research group, which is distinguished from the LIGA and EFAB. To obtain the micro-/nano- meter precision, there are three strategies of CELT: (1) electro- and/or photo- chemical generation of etchant on the surface of tool; (2) confining the etchant layer to a thickness of micro-/nano- meter; (3) Approaching tool to the workpiece for micromanufacturing. CELT have been proved successful in the micromanufacture on conductive, semiconductive and also insulate workpiece. In this paper, our work on CELT will be reviewed and future research will also be prospected.