Table 1.

Cis–trans (backward) and trans–cis (forward) conversion rate constants (k_obs in in s⁻¹) obtained for the indicated compounds in different solvents in this study and literature.

Compound	H2Otrans–cis	H2Ocis–trans	CHCl3trans–cis	CHCl3cis–trans	DMFtrans–cis	DMFcis–trans	Reference
AZB(COOH)2	3.8(1) × 10−4	2.9(1) × 10−4	3.0(1) × 10−4	1.7(1) × 10−4	5(1) × 10−4	2.2(1) × 10−4	this work
Al-AZB	1.0 × 10−4	1.0 × 10−4	1.3 × 10−4		1.8 × 10−4		this work
Zr-AZB	1.1 × 10−4	1.0 × 10−4	1.4 × 10−4		1.8 × 10−4		this work
AZB(H2)	1.7 × 10−7						[22]
Compound			CHCl3cis–trans		DMFcis–trans
AZB(H)(OH)			1.6 × 10−3				[2]
AZO-1 a					1.7 × 10−1		[8]
AZO-2 b					1.4 × 10−5		[8]
AZO-1–RGO c					3.2 × 10−5		[8]
AZO-2–RGO d					2.5 × 10−7		[8]
para-AZO e					3.0 × 10−1		[9]
ortho-AZO f					1.6 × 10−6		[9]
RGO-para-AZO g					1.7 × 10−6		[9]
RGO-ortho-AZO h					3.6 × 10−8		[9]

^a 4-((3,5-dimethoxyaniline)diazenyl)-benzene (see SI of reference [12] for structure); ^b 4-((3,5-dimethoxyaniline)diazenyl)−4-benzoic acid (see SI of reference [12] for structure); ^c 4-((3,5-dimethoxyaniline)diazenyl)-benzene covalently bound to reduced graphene oxide (RGO); ^d 4-((3,5-dimethoxyaniline)diazenyl)−4-benzoic acid covalently bound to RGO; ^e SO₃H para substitution of azobenzene; ^f SO₃H ortho substitution of azobenzene; ^g SO₃H para substitution of azobenzene covalently bound to RGO; ^h SO₃H ortho substitution of azobenzene covalently bound to RGO.