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monomer emission. Angew Chem Int Ed 55:203–207
3. (a) Mutai T, Satou H, Araki K (2005) Reproducible on–off switching of solid-state luminescence
by controlling molecular packing through heat-mode interconversion. Nat Mater 4:685–687. (b)
Li FF, Zhang L, Gong LL, Yan CS, Gao HY, Luo F (2017) Reversible photo/thermoswitchable
dual-color fluorescence through single-crystal-to-single-crystal transformation. Dalton Trans
46:338–341. (c) Lim SH, Olmstead MM, Balch AL (2013) Inorganic topochemistry. Vaporinduced solid state transformations of luminescent, three-coordinate gold(I) complexes. Chem.
Sci. 4:311–318. (d) Zeng M-H, Tan Y-X, He Y-P, Yin Z, Chen Q, Kurmoo M (2013) A
porous 4-fold-interpenetrated chiral framework exhibiting vapochromism, single-crystal-tosingle-crystal solvent exchange, gas sorption, and a poisoning effect. Inorg Chem 52:2353–
2360. (e) Huang R-W, Wei Y-S, Dong X-Y, Wu X-H, Du C-X, Zang S-Q, Mak TCW (2017)
Hypersensitive dual-function luminescence switching of a silver-chalcogenolate cluster-based
metal–organic framework. Nat Chem 9:689–697. (f) Lim SH, Olmstead MM, Balch AL (2011)
Molecular accordion: vapoluminescence and molecular flexibility in the orange and green
luminescent crystals of the dimer, Au 2 (μ-bis-(diphenylphosphino)ethane) 2 Br 2 . J Am Chem
Soc 133:10229–10238. (g) Seki T, Sakurada K, Muromoto M, Ito H (2015) Photoinduced
single-crystal-to-single-crystal phase transition and photosalient effect of a gold(I) isocyanide
complex with shortening of intermolecular aurophilic bonds. Chem Sci 6:1491–1497
4. (a) Naumov P, Bharadwaj PK (2015) Single-crystal-to-single-crystal transformations. CrystEngComm 17:8775–8775. (b) Chaudhary A, Mohammad A, Mobin SM (2017) Recent
advances in single-crystal-to-single-crystal transformation at the discrete molecular level. Cryst
Growth Des 17:2893–2910
5. (a) Ito H, Muromoto M, Kurenuma S, Ishizaka S, Kitamura N, Sato H, Seki T (2013) Mechanical
stimulation and solid seeding trigger single-crystal-to-single-crystal molecular domino transformations. Nat Commun 4:2009. Seki T, Sakurada K, Ito H (2013) Controlling mechanoand seeding-triggered single-crystal-to-single-crystal phase transition: molecular domino with
a disconnection of aurophilic bonds. Angew Chem Int Ed 52:12828–12832. (c) Seki T, Sakurada K, Muromoto M, Seki S, Ito H (2016) Detailed investigation of the structural, thermal,
and electronic properties of gold isocyanide complexes with mechano-triggered single-crystalto-single-crystal phase transitions. Chem Eur J 22:1968–1978. (d) Liu G, Liu J, Liu Y, Tao
X (2014) Oriented single-crystal-to-single-crystal phase transition with dramatic changes in
the dimensions of crystals. J Am Chem Soc 136:590–593. (e) Karothu DP, Weston J, Desta
IT, Naumov P (2016) Shape-memory and self-healing effects in mechanosalient molecular
crystals. J Am Chem Soc 138:13298–13306
6. (a) Liu GF, Liu J, Ye X, Nie LN, Gu PY, Tao XT, Zhang QC (2017) Self-healing behavior in a
thermo-mechanically responsive cocrystal during a reversible phase transition. Angew Chem
Int Ed 56:198–202. (b) Takamizawa S, Miyamoto Y (2014) Superelastic organic crystals.
Angew Chem Int Ed 53:6970–6973. (c) Takasaki Y, Takamizawa S (2015) Reversible crystal
deformation of a single-crystal host of copper(II) 1-naphthoate-pyrazine through crystal phase
transition induced by methanol vapor sorption. Chem Commun 51:5024–5027. (d) Takamizawa
S, Takasaki Y (2015) Superelastic shape recovery of mechanically twinned 3,5-difluorobenzoic
acid crystals. Angew Chem Int Ed 54:4815–4817
7. Seki T, Takamatsu Y, Ito H (2016) A screening approach for the discovery of mechanochromic
gold(I) isocyanide complexes with crystal-to-crystal phase transitions. J Am Chem Soc
138:6252–6260
8. Hong Y, Lam JWY, Tang BZ (2011) Aggregation-induced emission. Chem Soc Rev 40:5361–
5388
9. Seki T, Tokodai N, Omagari S, Nakanishi T, Hasegawa Y, Iwasa T, Taketsugu T, Ito H
(2017) Luminescent mechanochromic 9-anthryl gold(I) isocyanide complex with an emission
maximum at 900 nm after mechanical stimulation. J Am Chem Soc 139:6514–6517
155
donor-acceptor mixture film: mixed stack charge-transfer emission versus segregated stack
monomer emission. Angew Chem Int Ed 55:203–207
3. (a) Mutai T, Satou H, Araki K (2005) Reproducible on–off switching of solid-state luminescence
by controlling molecular packing through heat-mode interconversion. Nat Mater 4:685–687. (b)
Li FF, Zhang L, Gong LL, Yan CS, Gao HY, Luo F (2017) Reversible photo/thermoswitchable
dual-color fluorescence through single-crystal-to-single-crystal transformation. Dalton Trans
46:338–341. (c) Lim SH, Olmstead MM, Balch AL (2013) Inorganic topochemistry. Vaporinduced solid state transformations of luminescent, three-coordinate gold(I) complexes. Chem.
Sci. 4:311–318. (d) Zeng M-H, Tan Y-X, He Y-P, Yin Z, Chen Q, Kurmoo M (2013) A
porous 4-fold-interpenetrated chiral framework exhibiting vapochromism, single-crystal-tosingle-crystal solvent exchange, gas sorption, and a poisoning effect. Inorg Chem 52:2353–
2360. (e) Huang R-W, Wei Y-S, Dong X-Y, Wu X-H, Du C-X, Zang S-Q, Mak TCW (2017)
Hypersensitive dual-function luminescence switching of a silver-chalcogenolate cluster-based
metal–organic framework. Nat Chem 9:689–697. (f) Lim SH, Olmstead MM, Balch AL (2011)
Molecular accordion: vapoluminescence and molecular flexibility in the orange and green
luminescent crystals of the dimer, Au 2 (μ-bis-(diphenylphosphino)ethane) 2 Br 2 . J Am Chem
Soc 133:10229–10238. (g) Seki T, Sakurada K, Muromoto M, Ito H (2015) Photoinduced
single-crystal-to-single-crystal phase transition and photosalient effect of a gold(I) isocyanide
complex with shortening of intermolecular aurophilic bonds. Chem Sci 6:1491–1497
4. (a) Naumov P, Bharadwaj PK (2015) Single-crystal-to-single-crystal transformations. CrystEngComm 17:8775–8775. (b) Chaudhary A, Mohammad A, Mobin SM (2017) Recent
advances in single-crystal-to-single-crystal transformation at the discrete molecular level. Cryst
Growth Des 17:2893–2910
5. (a) Ito H, Muromoto M, Kurenuma S, Ishizaka S, Kitamura N, Sato H, Seki T (2013) Mechanical
stimulation and solid seeding trigger single-crystal-to-single-crystal molecular domino transformations. Nat Commun 4:2009. Seki T, Sakurada K, Ito H (2013) Controlling mechanoand seeding-triggered single-crystal-to-single-crystal phase transition: molecular domino with
a disconnection of aurophilic bonds. Angew Chem Int Ed 52:12828–12832. (c) Seki T, Sakurada K, Muromoto M, Seki S, Ito H (2016) Detailed investigation of the structural, thermal,
and electronic properties of gold isocyanide complexes with mechano-triggered single-crystalto-single-crystal phase transitions. Chem Eur J 22:1968–1978. (d) Liu G, Liu J, Liu Y, Tao
X (2014) Oriented single-crystal-to-single-crystal phase transition with dramatic changes in
the dimensions of crystals. J Am Chem Soc 136:590–593. (e) Karothu DP, Weston J, Desta
IT, Naumov P (2016) Shape-memory and self-healing effects in mechanosalient molecular
crystals. J Am Chem Soc 138:13298–13306
6. (a) Liu GF, Liu J, Ye X, Nie LN, Gu PY, Tao XT, Zhang QC (2017) Self-healing behavior in a
thermo-mechanically responsive cocrystal during a reversible phase transition. Angew Chem
Int Ed 56:198–202. (b) Takamizawa S, Miyamoto Y (2014) Superelastic organic crystals.
Angew Chem Int Ed 53:6970–6973. (c) Takasaki Y, Takamizawa S (2015) Reversible crystal
deformation of a single-crystal host of copper(II) 1-naphthoate-pyrazine through crystal phase
transition induced by methanol vapor sorption. Chem Commun 51:5024–5027. (d) Takamizawa
S, Takasaki Y (2015) Superelastic shape recovery of mechanically twinned 3,5-difluorobenzoic
acid crystals. Angew Chem Int Ed 54:4815–4817
7. Seki T, Takamatsu Y, Ito H (2016) A screening approach for the discovery of mechanochromic
gold(I) isocyanide complexes with crystal-to-crystal phase transitions. J Am Chem Soc
138:6252–6260
8. Hong Y, Lam JWY, Tang BZ (2011) Aggregation-induced emission. Chem Soc Rev 40:5361–
5388
9. Seki T, Tokodai N, Omagari S, Nakanishi T, Hasegawa Y, Iwasa T, Taketsugu T, Ito H
(2017) Luminescent mechanochromic 9-anthryl gold(I) isocyanide complex with an emission
maximum at 900 nm after mechanical stimulation. J Am Chem Soc 139:6514–6517