Photoisomerization locking of azobenzene by formation of a self-assembled macrocycle.

Reaction of an azobenzene-linked biscatecholate ligand with boron and titanium sources gave ring- and cage-shaped complexes in a self-assembly fashion, respectively. These complexes were inert to photoisomerization though the ligand itself was isomerized upon photoirradiation. The self-assembled macrocyclization caused inhibition of the photoisomerization.

[1]  H. Tian,et al.  A novel gated photochromic reactivity controlled by complexation/dissociation with BF3. , 2012, Chemical communications.

[2]  S. Hecht,et al.  Toward optomechanics: maximizing the photodeformation of individual molecules. , 2011, Chemical communications.

[3]  H. Wegner,et al.  Oligoazobenzenophanes--synthesis, photochemistry and properties. , 2011, Chemical communications.

[4]  B. C. Garrett,et al.  Magnetic Bistability of Molecules in Homogeneous Solution at Room Temperature , 2011, Science.

[5]  M. Akita.  Photochromic Organometallics, A Stimuli-Responsive System: An Approach to Smart Chemical Systems† , 2011 .

[6]  M. M. Enriquez,et al.  Proof for the concerted inversion mechanism in the trans-->cis isomerization of azobenzene using hydrogen bonding to induce isomer locking. , 2010, The Journal of organic chemistry.

[7]  Yuya Tanaka,et al.  Photochromic organometallics with a dithienylethene (DTE) Bridge, [Y-C[triple bond]C-DTE-C[triple bond]C-Y] (Y={MCp*(dppe)}): photoswitchable molecular wire (M=Fe) versus dual photo- and electrochromism (M=Ru). , 2010, Chemistry.

[8]  I. Azumaya,et al.  Back to back twin bowls of D3-symmetric tris(spiroborate)s for supramolecular chain structures. , 2009, Journal of the American Chemical Society.

[9]  M. Akita,et al.  Remarkable switching behavior of bimodally stimuli-responsive photochromic dithienylethenes with redox-active organometallic attachments. , 2008, Chemical communications.

[10]  C. Lagrost,et al.  A multifunctional organometallic switch with carbon-rich ruthenium and diarylethene units. , 2008, Chemical communications.

[11]  Oliver J. Clarke,et al.  Trianionic organoborate triangles. , 2008, Inorganic chemistry.

[12]  Xiaochuan Li,et al.  "Lock and key control" of photochromic reactivity by controlling the oxidation/reduction state. , 2008, Organic letters.

[13]  D. Gin,et al.  Polymerizable Photochromic Macrocyclic Metallomesogens: Design of Supramolecular Polymers with Responsive Nanopores , 2008 .

[14]  T. Kawashima,et al.  Synthesis of the most intensely fluorescent azobenzene by utilizing the B-N interaction. , 2007, Chemical communications.

[15]  V. Yam,et al.  Tetranuclear Macrocyclic Gold(I) Alkynyl Phosphine Complex Containing Azobenzene Functionalities: A Dual-Input Molecular Logic with Photoswitching Behavior Controllable via Silver(I) Coordination/Decoordination , 2007 .

[16]  K. Raymond,et al.  d-orbital effects on stereochemical non-rigidity: twisted Ti(IV) intramolecular dynamics. , 2006, Journal of the American Chemical Society.

[17]  B. Abrahams,et al.  Tetraanionic organoborate squares glued together by cations to generate nanotubular stacks. , 2006, Angewandte Chemie.

[18]  M. Hara,et al.  Intense fluorescence from light-driven self-assembled aggregates of nonionic azobenzene derivative. , 2005, Journal of the American Chemical Society.

[19]  H. Nishihara.  Combination of redox- and photochemistry of azo-conjugated metal complexes , 2005 .

[20]  M. Albrecht,et al.  Catechol imine ligands: from helicates to supramolecular tetrahedra. , 2005, Chemical communications.

[21]  W E Moerner,et al.  Organic photorefractives: mechanisms, materials, and applications. , 2004, Chemical reviews.

[22]  A. Lees,et al.  Self-assembly of transition-metal-based macrocycles linked by photoisomerizable ligands: examples of photoinduced conversion of tetranuclear-dinuclear squares. , 2002, Inorganic chemistry.

[23]  K. Raymond,et al.  Design, Formation and Properties of Tetrahedral M4L4 and M4L6 Supramolecular Clusters1 , 2001 .

[24]  A. Lees,et al.  Self-Assembly Triangular and Square Rhenium(I) Tricarbonyl Complexes: A Comprehensive Study of Their Preparation, Electrochemistry, Photophysics, Photochemistry, and Host−Guest Properties , 2000 .

[25]  M. Irie,et al.  Alkali metal ion effect on the photochromism of 1,2-bis(2,4-dimethylthien-3-yl)-perfluorocyclopentene having benzo-15-crown-5 moieties , 1998 .

[26]  M. Albrecht,et al.  Alkali‐Metal Cation Binding by Self‐Assembled Cryptand‐Type Supermolecules , 1996 .

[27]  M. Albrecht,et al.  Formation of a “meso‐Helicate” by Self‐Assembly of Three Bis(catecholate) Ligands and Two Titanium(IV) Ions , 1995 .

[28]  O. Miyatake,et al.  Blocked photochromism of diarylethenes , 1992 .

[29]  T. Kunitake,et al.  Fluorescence and photoisomerization of azobenzene-containing bilayer membranes , 1987 .

[30]  J. Griffiths,et al.  II. Photochemistry of azobenzene and its derivatives , 1972 .

[31]  A. Rosenheim,et al.  Über innerkomplexe Brenzcatechinate vierwertiger Elemente , 1931 .