auxochromen.

/ˈɔːksəʊkrəʊm/

Etymology: German (O. N. Witt 1888, in Berichte der Deutsch. Chem. Ges. 21 i. 325), < Greek αὔξειν to increase + -o suffix + χρῶμα colour.

Any salt-forming group that, when combined with a chromogen, produces a dyestuff.

ΘΚΠ

the world > matter > chemistry > organic chemistry > organic dyes > [noun] > miscellaneous others

safranine1868

chrome1876

azo-colours1879

azine1887

auxochrome1893

Michler's hydrol1910

hypsochrome1917

merocyanine1937

1893 Athenæum 15 July 100/1 They [sc. chromogens] become true dyestuffs by the introduction of..what Witt terms auxochromes.

1953 J. Ramsbottom Mushrooms & Toadstools ix. 102 Other groups (OH, OCH₃, CO₂H, NH₂), known as auxochromes, modify this basal colour in various ways.

Derivatives

auxochromic adj.

/ˌɔːksəʊˈkrəʊmɪk/ defining such groups.

ΘΚΠ

the world > matter > chemistry > organic chemistry > organic dyes > [adjective]

auxochromic1892

auxochromous1902

1892 A. Collin & W. Richardson tr. Nietzki Chem. Org. Dyestuffs i. 13 The chromophoric quinone group confers strong acid properties on the auxochromic hydroxyl group.

1902 Brit. Jrnl. Photogr. 11 Apr. 299 Auxochromic groups.

auxochromous adj.

/ˌɔːksəʊˈkrəʊməs/ = auxochromic adj.

ΘΚΠ

the world > matter > chemistry > organic chemistry > organic dyes > [adjective]

auxochromic1892

auxochromous1902

1902 Encycl. Brit. XXVII. 564/2 Such compounds containing chromophorous groups are termed chromogens, because, although not dyestuffs themselves, they are capable of generating such by the further introduction of salt-forming atomic groups—e.g., OH, NH₂. These Witt terms auxochromous groups.

This entry has not yet been fully updated (first published 1933; most recently modified version published online March 2019).

单词	auxochrome
释义	auxochromen. /ˈɔːksəʊkrəʊm/ Etymology: German (O. N. Witt 1888, in Berichte der Deutsch. Chem. Ges. 21 i. 325), < Greek αὔξειν to increase + -o suffix + χρῶμα colour. Any salt-forming group that, when combined with a chromogen, produces a dyestuff. ΘΚΠ the world > matter > chemistry > organic chemistry > organic dyes > [noun] > miscellaneous others safranine1868 chrome1876 azo-colours1879 azine1887 auxochrome1893 Michler's hydrol1910 hypsochrome1917 merocyanine1937 1893 Athenæum 15 July 100/1 They [sc. chromogens] become true dyestuffs by the introduction of..what Witt terms auxochromes. 1953 J. Ramsbottom Mushrooms & Toadstools ix. 102 Other groups (OH, OCH₃, CO₂H, NH₂), known as auxochromes, modify this basal colour in various ways. Derivatives auxochromic adj. /ˌɔːksəʊˈkrəʊmɪk/ defining such groups. ΘΚΠ the world > matter > chemistry > organic chemistry > organic dyes > [adjective] auxochromic1892 auxochromous1902 1892 A. Collin & W. Richardson tr. Nietzki Chem. Org. Dyestuffs i. 13 The chromophoric quinone group confers strong acid properties on the auxochromic hydroxyl group. 1902 Brit. Jrnl. Photogr. 11 Apr. 299 Auxochromic groups. auxochromous adj. /ˌɔːksəʊˈkrəʊməs/ = auxochromic adj. ΘΚΠ the world > matter > chemistry > organic chemistry > organic dyes > [adjective] auxochromic1892 auxochromous1902 1902 Encycl. Brit. XXVII. 564/2 Such compounds containing chromophorous groups are termed chromogens, because, although not dyestuffs themselves, they are capable of generating such by the further introduction of salt-forming atomic groups—e.g., OH, NH₂. These Witt terms auxochromous groups. This entry has not yet been fully updated (first published 1933; most recently modified version published online March 2019). < n.1892
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