The Analogs of Hofmann Type Clathrate Formed between Diammine-or Diaminemetal(II) Tetracyanometallate(II) Host and Aromatic Guest Molecule

• Published in: Bulletin of the Chemical Society of Japan Vol. 51; no. 2; pp. 488 - 491
• Main Authors: Iwamoto, Toschitake, Kiyoki, Mamoru, Ohtsu, Yutaka, Takeshige-Kato, Yasuko
• Format: Journal Article
• Language: English
• Published: Tokyo The Chemical Society of Japan 01.02.1978; Chemical Society of Japan
• ISSN: 0009-2673; 1348-0634
• DOI: 10.1246/bcsj.51.488

A novel series of clathrates Cd(tn)M′(CN)4·2G (M′=Cd or Hg; G=C4H4S, C4H5N, C6H6, or C6H5NH2) were prepared as an analogous series of Hofmann type clathrate. Including the novel series, Hofmann type and the analogous clathrates with a general formulation M(diam)M′(CN)4·2G were classified into five groups according to the combination of the host constituents and the resulting host framework structures as follows: Hofmann type M(NH3)2M′(CN)4·2G with square-planar M′(CN)4, Hofmann-en type Cd(en)NM′(CN)4·2G with ambident en and square-planar M′(CN)4, Hofmann-Td type Cd(NH3)2M′(CN)4·2G with tetrahedral M′(CN)4, en-Td type Cd(en)M′(CN)4·2G with ambident en and tetrahedral M′(CN)4, and tn-Td type Cd(tn)M′(CN)4·2G with ambident tn and tetrahedral M′(CN)4. Their structural features were discussed based on the flexibility of the framework whether it can enclathrate aniline as the largest guest or not.