Table 1 Photoluminescence data of G1–G3 and their host–guest complexes in different states at room temperature

From: The host–guest inclusion driven by host-stabilized charge transfer for construction of sequentially red-shifted mechanochromic system

Compound

In solution[a]

In solid state

λ (nm)[b]

Ï„ (ns)

Φ (%)

Initial state

Ground state

λ (nm)[b]

Ï„ (ns)

Φ (%)

λ (nm)[b]

Ï„ (ns)

Φ (%)

G1[c]

601

0.08

Ë‚0.1

566

4.17

32

578

4.11

22

CB[8]·G12

587

1.45

0.71

586

3.99

20

599

7.58

10

G2

578

0.14

0.32

547

3.15

12

556

4.49

5.0

CB[8]·G22

574

9.16

2.0

573

5.06

10

584

4.57

10

G3

608

0.13

Ë‚0.1

560

2.42

28

596

2.89

19

CB[8]·G32

596

7.39

2.1

611

3.25

12

626

3.87

8.3

CB[8]·Py·G1

560

0.42

4.8

569

4.43

18

583

4.58

18

  1. aPhotoluminescence data in solution are measured in water.
  2. bMaximum emission wavelength.
  3. cThe counterions of all guests and their complexes are chloride.
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