| 释义 |
conjugated, ppl. a.|ˈkɒndʒʊgeɪtɪd|
[f. conjugate v. + -ed.]
a. = conjugate a. in various senses.
1690Norris Beatitudes 228 The Virgin may be said to be more pure than the conjugated Person. 1727Bradley Fam. Dict. s.v. Ficoides, Conjugated Leaves, that is Leaves set out in Pairs at the Joints. 1798Anti-Jacobin Apr. 23 Loves of Triangles 117 Quick as her conjugated axes move. 1871tr. Lommel's Light 45 These two points are so conjugated that the one is the image of the other.
b. Chem. = conjugate A. 3. Also, designating, pertaining to, or containing a chain or ring of carbon atoms in which every other pair of carbon atoms is linked by a double bond.
1882Watts Dict. Chem. II. 7 Dumas and Piria..designated [such acids] as ‘conjugated acids’. Ibid. II. 8 Thus acetyl, C2H3O, may be regarded as a conjugated radicle composed of carbonyl, CO, and methyl, CH3, because acetic acid and its derivatives are capable of splitting up into compounds containing carbonyl, and others containing methyl. 1907Chem. Abstr. 1400 Some compounds, such as benzene, contain conjugated double linkages. Ibid. 1537 Unsaturated conjugated systems. 1910Encycl. Brit. VI. 56/2 From a study of the reduction of compounds containing two ethylenic bonds united by a single bond, termed a ‘conjugated system’, E. Thiele suggested a doctrine of ‘partial valencies’. 1948Glasstone Physical Chem. (ed. 2) viii. 530 When an open chain molecule contains a system of conjugated double bonds, the molar refraction is different. 1962P. J. & B. Durrant Adv. Inorg. Chem. xi. 318 In conjugated systems the bond orders are usually fractional, and the fraction has to be calculated from a knowledge of the conjugated structure.
[b.] Substitute for sub-entry: Chem. and Biochem. Of a compound: formed by conjugation of two simpler compounds. Of a constituent compound: that is conjugated with another; conjugated protein, a protein conjugated with a non-protein.
1857Jrnl. Chem. Soc. IX. 253 A similar increase of solubility is observed with the barium-salts of the series of conjugated acids. Ibid. 258 A conjugated sulpho-acid, containing an organic base in the place of hydrocarbons, alcohols, acids, &c., which are present in the usual sulpho-acids. 1863Watts Dict. Chem. vii. 7 Dumas and Piria..designated them as ‘conjugated acids’. 1863tr. Gerhardt in Ibid. 8 Acetyl, C2H3O , may be regarded as a conjugated radicle composed of carbonyl, CO , and methyl, CH3 , because acetic acid and its derivatives are capable of splitting up into compounds containing carbonyl, and others containing methyl. 1895A. H. Allen Chem. Urine 37 Glycuronic acid..was first obtained in the conjugated form of campho-glycuronic acid. 1908Proc. Soc. Biol. Chemists p. xlix in Jrnl. Biol. Chem. IV, Conjugated proteins, substances which contain the protein molecule united to some other molecule or molecules otherwise than as a salt. 1950Thorpe's Dict. Appl. Chem. (ed. 4) X. 257/2 In a number of the conjugated proteins..the union between protein and non-protein moiety may be presumed to be of a similar kind, even where..reversible dissociation of the components has not been achieved. 1974Passmore & Robson Compan. Med. Stud. III. xx. 8 In both syndromes, the main defect is in excretion of conjugated bilirubin which is regurgitated from the hepatocytes into the plasma. 1984Tighe & Davies Pathology (ed. 4) xvii. 167 The renal ‘threshold’ for albumin-bound bilirubin is much higher than for conjugated glucuronide. |