Adiabatic ring opening in tethered naphthalene and anthracene cycloadducts.

نویسندگان

  • Arun Kumar Sundaresan
  • Steffen Jockusch
  • Yongjun Li
  • Jeffrey R Lancaster
  • Steven Banik
  • Paul Zimmerman
  • James M Blackwell
  • Robert Bristol
  • Nicholas J Turro
چکیده

The cycloadducts of tethered naphthalene and anthracene derivatives undergo photochemical ring opening to an electronically excited product with adiabatic yields up to 90%.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Carbon nanorings with inserted acenes: breaking symmetry in excited state dynamics

Conjugated cycloparaphenylene rings have unique electronic properties being the smallest segments of carbon nanotubes. Their conjugated backbones support delocalized electronic excitations, which dynamics is strongly influenced by cyclic geometry. Here we present a comparative theoretical study of the electronic and vibrational energy relaxation and redistribution in photoexcited cycloparapheny...

متن کامل

anti-9,10-Di(1-naphth­yl)anthracene pyridine disolvate

In the title compound, C(34)H(22)·2C(5)H(5)N, there is a crystallographic inversion center in the middle of the anthracene ring system. The dihedral angle between the mean planes of the anthracene and naphthalene ring systems is 83.96 (4)°. The crystal structure is stabilized by weak inter-molecular C-H⋯N and C-H⋯π inter-actions.

متن کامل

Crystal structure of 6-(p-tol­yl)benzo[b]naphtho[2,3-d]thio­phene and of an ortho­rhom­bic polymorph of 7-phenyl­anthra[2,3-b]benzo[d]thio­phene

The title compounds, C23H16S, (I), and C26H16S, (II), are benzo-thio-phene derivatives in which the benzo-thio-phene moiety is fused with a naphthalene ring system in (I), and with an anthracene ring system in (II). In (I), the mean plane of the benzo-thio-phene ring system makes a dihedral angle of 2.28 (6)° with the naphthalene ring system, and a dihedral angle of 1.28 (6)° with the anthracen...

متن کامل

3-(9-Anthrylmethyl)-1-benzylperimi­dinium hexa­fluoro­phosphate

In the title compound, C(33)H(25)N(2) (+)·PF(6) (-), the naphthalene ring system is twisted with respect to the anthracene and benzene rings, making dihedral angles of 72.40 (3) and 71.39 (4)°, respectively. The crystal structure is stabilized by intermolecular C-H⋯F hydrogen bonding. Four F atoms of the hexa-fluoro-phosphate anion are disordered over two sets of sites in a 0.645 (4):0.355 (4) ...

متن کامل

Understanding the ring current effects on magnetic shielding of hydrogen and carbon nuclei in naphthalene and anthracene

The local response to an external magnetic field normal to the molecular plane of naphthalene and anthracene was investigated via current density and magnetic shielding density maps. The Biot-Savart law shows that the deshielding caused by pi-ring currents in naphthalene is stronger for alpha- than for beta-protons due to geometrical factors. The shielding tensor of the carbon nuclei in both mo...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology

دوره 9 8  شماره 

صفحات  -

تاریخ انتشار 2010