| 释义 |
quadridentate, a.|kwɒdrɪˈdɛnteɪt|
[f. quadri- + L. dentātus (see dentate a.).]
1. Bot. and Zool. Having four serrations or indentations.
1760J. Lee Introd. Bot. i. xv. (1765) 39 Quadridentate, split into four segments. 1828Stark Elem. Nat. Hist. II. 159 Body covered with a reddish down,.. front quadridentate.
2. Chem. Of a ligand: forming four separate bonds. Of a complex: formed by such a ligand.
1925Morgan & Smith in Jrnl. Chem. Soc. CXXVII. 2031 We have now succeeded in identifying a group capable of quadruple attachment to metallic atoms, this being the first known case of a quadridentate group in co-ordination complexes. 1937Chem. Rev. XXI. 98 Probably the first synthetic quadridentate compounds..were the copper and bivalent platinum compounds of ethylene bisthioglycolic acid. 1956R. W. Parry in J. C. Bailar Chem. Coordination Compounds v. 239 The base is a quadridentate molecule in which the four nitrogen atoms can be expected to occupy the corners of a tetrahedron. 1972M. L. Tobe Inorg. Reaction Mechanisms vi. 70 (caption) Trigonal bipyramidal complex of a ‘tripod’ quadridentate ligand showing how the trigonal symmetry of the ligand forces the configuration in the complex. |