| abstract |
A compound of formula (I), formula (II), or a combination thereof, and salts thereof is described. n n n n n n n n n n Each A may be independently an optionally substituted conjugated species or an optionally substituted aromatic species. Each R may be independently an optionally substituted C 1 -C 40 linear alkyl chain, an optionally substituted branched alkyl chain, an optionally substituted alkyl chain containing heteroatoms, substituted alkyl chains, or H. Each R 2 may be independently an optionally substituted C 1 -C 40 linear alkyl chain, an optionally substituted branched alkyl chain, an optionally substituted alkyl chain containing heteroatoms, substituted alkyl chains, H, or part of a cyclic boronate ester with an other R 2 . Each n may be independently less than or equal to 3 and greater than or equal to 1. Each x may be independently less than or equal to 3. |