Highlights with ‘DFTB’

AMS2019 released: ReaxFF fitting, polymers, AMS with GFN1-xTB & MOPAC

We are proud to announce the new major release of the Amsterdam Modeling Suite, AMS2019, containing many new powerful capabilities through the AMS driver. Set up advanced PES explorations such as accelerated MD, molecule gun,...

PhD thesis Robert Rüger: Fast Excited State Calculations

Congratulations to Dr. Robert Rüger! On 14 February Robert successfully defended his PhD thesis entitled Approximations in Density Functional Based Excited State Calculations, describing the development, benchmarking and applications of fast methods for UV/VIS methods. Robert...

Single material transistor from 2D PdS2

Thomas Heine and coworkers computationally designed a logical junction made from a single material, PdS2. Uniquely, 2D transition metal dichalcogenide PdS2 is semiconducting as a monolayer (ML) while it is semimetallic as a bilayer (BL). By exploiting...

Zeolite-catalyzed hydrolysis: DFT/DFTB calculations

The catalytic hydrolysis of propylene oxide in ZSM-5 was investigated using multi-layered ADF/DFTB calculations with QUILD. Using dispersion-corrected DFT (BP86-D3) at the high level and third-order DFTB (DFTB3) at the low level,  both monopropylene glycol and dipropylene...

Multi-scale Modeling of Chemistry in Water

Accurate modeling of chemical reactions in realistic aqueous environments calls for an efficient multi-scale quantum mechanical/molecular mechanical (QM/MM) approach. However, since solvent molecules diffuse in and out of the region of interest, new adaptive approaches...