Structures and photophysical properties of 3,4-diaryl-1H-pyrrol-2,5-diimines and 2,3-diarylmaleimides

Abstract

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Structural data of phenanthrene-9,10-dicarbonitriles

“…Phenanthrene-9,10-dicarbonitriles were obtained by the previously published procedures [[1], [2], [3], [4], [5]]. The crystals of appropriate quality were obtained at room temperature from ethanol solution.…”

The Solid-State Structures of Cyclic NH Carboximides

“…Of the 27 3,4-disubstituted maleimide structures located, the most commonly observed pattern is the hydrogen-bonded dimer A. The 13 structures noted as exhibiting the dimeric R 2 2 (8) bonding pattern are made up of both symmetrical (where the substituents on the ring are the same) compounds 5 [11,12], 6 [12], 7 [12], 8 [13], 9 [14,15], 10 [16] and 11 [17] and unsymmetrical examples 12 [18], 13 [19,20] and 14 [21] (Figure 5).…”

“…Crystals 2020, 10, x FOR PEER REVIEW 4 of 50 compounds 5 [11,12], 6 [12], 7 [12], 8 [13], 9 [14,15], 10 [16] and 11 [17] and unsymmetrical examples 12 [18], 13 [19,20] and 14 [21] (Figure 5). Eight of the located structures, compounds 15 [22], 16 [22], 17 [23], 18 [18], 19 [24] and 20 [25] (Figure 6), display a linear hydrogen-bonded ribbon pattern B.…”

“…The compound 286 [239] (Figure 83) exists as a complex two-dimensional network in which imide NH to imide CO R 2 2 (8) dimer units are arranged in lines with alternating orientation and each dimer is further linked to two separate dimers in the lines on either side by a C(8) interaction of the remaining CO of the dimer-forming imide function with the NH of the non-dimer-forming imide. In Compound 285 [238] (Figure 82) a complex two-dimensional network pattern is observed made up of imide NH to lactam CO R 2 2 (12) dimers which are arranged in a herring-bone pattern. Each dimer is then linked to four further dimers in the adjacent rows by C( 7) lactam NH to CO hydrogen bonding.…”

Intermolecular interactions-photophysical properties relationships in phenanthrene-9,10-dicarbonitrile assemblies

“…2. Starting from a series of arylacetonitriles, following Linstead's procedure [22,23], the nitriles of 2,3-diarylbutenedioic acids (where aryl is phenyl, 4fluorophenyl, 4-methylphenyl, and 4-methoxyphenyl) were produced (See the Supporting Information). 2,3-Di(4-chlorophenyl) fumaronitrile, 2,3-di(3,4-dichlorophenyl)fumaronitrile, and 2,3di(4-bromophenyl)fumaronitrile were produced electrochemically from the appropriate arylacetonitriles (See the Supporting Information) [24].…”