ðə sˈɔːɹət bˈænd ɚɹˈaɪzᵻz pɹaɪmˈɛɹᵻli dˈuː tʊ ɐn ᵻlˈɛktɹɑːn dˈaɪpoʊl mˈuːvmənt ðæt ɐlˈaʊz pˈaɪpˈaɪ ˈæstɚɹˌɪsk tɹænsˈɪʃənz; mˈoʊst kˈɑːmən ɪn pˈoːɹfɪɹˌɪn kˈɑːmpaʊndz.
The Soret band arises primarily due to an electron dipole movement that allows π-π* transitions; most common in porphyrin compounds.