Array Insertion and Deletion P Systems

2013 ◽  
pp. 67-78 ◽  
Author(s):  
Henning Fernau ◽  
Rudolf Freund ◽  
Sergiu Ivanov ◽  
Markus L. Schmid ◽  
K. G. Subramanian
Keyword(s):  
P Systems ◽  
Insertion And Deletion

P Systems with Insertion and Deletion Exo-Operations

2011 ◽  
Vol 110 (1-4) ◽  
pp. 13-28 ◽  
Author(s):  
Artiom Alhazov ◽  
Alexander Krassovitskiy ◽  
Yurii Rogozhin ◽  
Sergey Verlan
Keyword(s):  
P Systems ◽  
Insertion And Deletion

Circular Post Machines and P Systems with Exo-insertion and Deletion

2012 ◽  
pp. 73-86 ◽  
Author(s):  
Artiom Alhazov ◽  
Alexander Krassovitskiy ◽  
Yurii Rogozhin
Keyword(s):  
P Systems ◽  
Insertion And Deletion

scholarly journals One-dimensional Array Grammars and P Systems with Array Insertion and Deletion Rules

2013 ◽  
Vol 128 ◽  
pp. 62-75 ◽  
Author(s):  
Rudolf Freund ◽  
Sergiu Ivanov ◽  
Marion Oswald ◽  
K.G. Subramanian
Keyword(s):  
P Systems ◽  
One Dimensional ◽  
Dimensional Array ◽  
Insertion And Deletion

Generating and accepting P systems with minimal left and right insertion and deletion

2014 ◽  
Vol 13 (2) ◽  
pp. 257-268 ◽  
Author(s):  
Rudolf Freund ◽  
Yurii Rogozhin ◽  
Sergey Verlan
Keyword(s):  
P Systems ◽  
Insertion And Deletion ◽  
Left And Right

scholarly journals Computational Power of P Systems with Small Size Insertion and Deletion Rules

2009 ◽  
Vol 1 ◽  
pp. 108-117 ◽  
Author(s):  
Alexander Krassovitskiy ◽  
Yurii Rogozhin ◽  
Sergey Verlan
Keyword(s):  
P Systems ◽  
Computational Power ◽  
Insertion And Deletion

scholarly journals P systems with minimal insertion and deletion

2011 ◽  
Vol 412 (1-2) ◽  
pp. 136-144 ◽  
Author(s):  
Artiom Alhazov ◽  
Alexander Krassovitskiy ◽  
Yurii Rogozhin ◽  
Sergey Verlan
Keyword(s):  
P Systems ◽  
Insertion And Deletion

Symmetry Breaking and the Turn-On Fluorescence of Small, Highly Strained Carbon Nanohoops

2019 ◽  
Author(s):  
Terri Lovell ◽  
Curtis Colwell ◽  
Lev N. Zakharov ◽  
Ramesh Jasti
Keyword(s):  
Symmetry Breaking ◽  
Theoretical Work ◽  
P Systems ◽  
Quantum Yields ◽  
Size Dependent ◽  
New Class ◽  
Carbon Carbon Bond ◽  
Conjugated Macrocycles ◽  
Structural Manipulation ◽  
Highly Strained

<p>[<i>n</i>]Cycloparaphenylenes, or “carbon nanohoops,” are unique conjugated macrocycles with radially oriented p-systems similar to those in carbon nanotubes. The centrosymmetric nature and conformational rigidity of these molecules lead to unusual size-dependent photophysical characteristics. To investigate these effects further and expand the family of possible structures, a new class of related carbon nanohoops with broken symmetry is disclosed. In these structures, referred to as <i>meta</i>[<i>n</i>]cycloparaphenylenes, a single carbon-carbon bond is shifted by one position in order to break the centrosymmetric nature of the parent [<i>n</i>]cycloparaphenylenes. Advantageously, the symmetry breaking leads to bright emission in the smaller nanohoops, which are typically non-fluorescent due to optical selection rules. Moreover, this simple structural manipulation retains one of the most unique features of the nanohoop structures-size dependent emissive properties with relatively large extinction coefficents and quantum yields. Inspired by earlier theoretical work by Tretiak and co-workers, this joint synthetic, photophysical, and theoretical study provides further design principles to manipulate the optical properties of this growing class of molecules with radially oriented p-systems.</p>

Symmetry Breaking and the Turn-On Fluorescence of Small, Highly Strained Carbon Nanohoops

2019 ◽  
Author(s):  
Terri Lovell ◽  
Curtis Colwell ◽  
Lev N. Zakharov ◽  
Ramesh Jasti
Keyword(s):  
Symmetry Breaking ◽  
Theoretical Work ◽  
P Systems ◽  
Quantum Yields ◽  
Size Dependent ◽  
New Class ◽  
Carbon Carbon Bond ◽  
Conjugated Macrocycles ◽  
Structural Manipulation ◽  
Highly Strained

<p>[<i>n</i>]Cycloparaphenylenes, or “carbon nanohoops,” are unique conjugated macrocycles with radially oriented p-systems similar to those in carbon nanotubes. The centrosymmetric nature and conformational rigidity of these molecules lead to unusual size-dependent photophysical characteristics. To investigate these effects further and expand the family of possible structures, a new class of related carbon nanohoops with broken symmetry is disclosed. In these structures, referred to as <i>meta</i>[<i>n</i>]cycloparaphenylenes, a single carbon-carbon bond is shifted by one position in order to break the centrosymmetric nature of the parent [<i>n</i>]cycloparaphenylenes. Advantageously, the symmetry breaking leads to bright emission in the smaller nanohoops, which are typically non-fluorescent due to optical selection rules. Moreover, this simple structural manipulation retains one of the most unique features of the nanohoop structures-size dependent emissive properties with relatively large extinction coefficents and quantum yields. Inspired by earlier theoretical work by Tretiak and co-workers, this joint synthetic, photophysical, and theoretical study provides further design principles to manipulate the optical properties of this growing class of molecules with radially oriented p-systems.</p>

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