Stereoselective Nanocarbon Imides Featuring 12-fold [5]helicenes
{Despite|Regardless of|In spite of} the {great|fantastic|excellent|wonderful|good|terrific} progress in {research|study|analysis|investigation} on chiral molecular nanocarbons containing {multiple|numerous|several|a number of|many|various} helicenes, controlling the stereoselectivity {is still|continues to be} {a major|a significant} challenge, {especially|particularly|specifically|specially|in…