The invention provides organic compounds of formula I, wherein each A is an independently selected conjugated electron withdrawing aromatic or heteroaromatic group; each D is an independently selected ethenylene group, ethynylene group or a conjugated electron donating aromatic or heteroaromatic group; r is an integer having a value of 2 or greater; each n is independently an integer from 1 to 20; and each p is independently an integer from 1 to 10. N-type acceptor materials derived from such compounds and devices comprising such n-type acceptor materials are also provided.
该发明提供了公式I的有机化合物,其中每个A是独立选择的共轭电子吸引芳香或杂芳基团;每个D是独立选择的
乙烯基团、
乙炔基团或共轭电子给体芳香或杂芳基团;r是一个大于等于2的整数;每个n是独立选择的1到20之间的整数;每个p是独立选择的1到10之间的整数。还提供了从这些化合物衍生的N型受体材料和包含这种N型受体材料的器件。