On the 1,3-dipolar cycloaddition reactions of indenone with N–N–C dipoles: density functional theory calculations

Several popular density functional theory (DFT) methods have been employed to characterize a series of 1,3-dipolar cycloaddition reactions, including the exploration of reaction mechanisms and the calculations of kinetic parameters.

Download Full-text

Density functional theory study of the regio‐ and stereoselectivity of 1,3-dipolar cycloaddition reactions between 2-ethylthio-4-phenyl-1-azetin and some substituted nitrile oxides

Structural Chemistry ◽

10.1007/s11224-015-0703-8 ◽

2015 ◽

Vol 27 (4) ◽

pp. 1041-1047 ◽

Cited By ~ 3

Author(s):

Amir Khojastehnezhad ◽

Hossein Eshghi ◽

Farid Moeinpour ◽

Mehdi Bakavoli ◽

Mohammad Izadyar ◽

...

Keyword(s):

Density Functional Theory ◽

Density Functional ◽

Dipolar Cycloaddition ◽

Cycloaddition Reactions ◽

Density Functional Theory Study ◽

Functional Theory ◽

Nitrile Oxides

Download Full-text

A Joint Study on Juglone Metal Complexes by InfraredÂ Spectroscopy and Density Functional Theory Calculations

10.3390/ecsoc-17-e005 ◽

2013 ◽

Author(s):

Ines Mancini ◽

Andrea Defant ◽

Costantino Tomasi

Keyword(s):

Density Functional Theory ◽

Metal Complexes ◽

Density Functional ◽

Density Functional Theory Calculations ◽

Functional Theory ◽

Joint Study

Download Full-text

Is a Non-Transition Element Nitride Ferromagnet Ever Achievable? Indication of the N-N Pairing Instability

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc20061525 ◽

2006 ◽

Vol 71 (11-12) ◽

pp. 1525-1531 ◽

Cited By ~ 3

Author(s):

Wojciech Grochala

Keyword(s):

Density Functional Theory ◽

Density Functional ◽

Transition Element ◽

Density Functional Theory Calculations ◽

Functional Theory

The enthalpy of four polymorphs of CaN has been scrutinized at 0 and 100 GPa using density functional theory calculations. It is shown that structures of diamagnetic calcium diazenide (Ca2N2) are preferred over the cubic ferromagnetic polymorph (CaN) postulated before, both at 0 and 100 GPa.

Download Full-text

Tensor-structured algorithm for reduced-order scaling large-scale Kohn–Sham density functional theory calculations

npj Computational Materials ◽

10.1038/s41524-021-00517-5 ◽

2021 ◽

Vol 7 (1) ◽

Author(s):

Chih-Chuen Lin ◽

Phani Motamarri ◽

Vikram Gavini

Keyword(s):

Density Functional Theory ◽

Density Functional ◽

Large Scale ◽

Density Functional Theory Calculations ◽

System Size ◽

Real Space ◽

Functional Theory ◽

Reduced Order ◽

Separable Approximation ◽

Tensor Basis

AbstractWe present a tensor-structured algorithm for efficient large-scale density functional theory (DFT) calculations by constructing a Tucker tensor basis that is adapted to the Kohn–Sham Hamiltonian and localized in real-space. The proposed approach uses an additive separable approximation to the Kohn–Sham Hamiltonian and an L1 localization technique to generate the 1-D localized functions that constitute the Tucker tensor basis. Numerical results show that the resulting Tucker tensor basis exhibits exponential convergence in the ground-state energy with increasing Tucker rank. Further, the proposed tensor-structured algorithm demonstrated sub-quadratic scaling with system-size for both systems with and without a gap, and involving many thousands of atoms. This reduced-order scaling has also resulted in the proposed approach outperforming plane-wave DFT implementation for systems beyond 2000 electrons.

Download Full-text