Table 2 Solid-state photophysical properties of monomers and corresponding macrocycles.

From: Synthesis and macrocyclization-induced emission enhancement of benzothiadiazole-based macrocycle

 

M1

C1

M2

C2

M3

C3

M4

C4

M5

C5

M6

C6

M7

C7

λex(nm)

300

308

300

332

325

332

310

320

350

405

340

300

300

310

λem(nm)

355

384

384

384

403

408

366

392

468

450

361

373

390

449

ΦPL(%)

5.51

19.2

15.3

53.0

34.4

37.5

12.7

65.2

0.6

5.9

12.1

17.5

21.9

28.2

  1. λex (nm): excitation maximum.
  2. λem (nm): fluorescence maximum.
  3. ΦPL: absolute PL quantum yield.