Highlights with ‘DFTB’

2D periodic DFT and hybrid DFT/DFTB – Q&A 18 September

Join the next in our series of demonstrations, tips & tricks bySCM experts. Friday 18 September Pier discusses valuable tips & tricks on running 2D periodic DFT calculations with BAND. He will discuss the relevant...

Introduction to Molecular Dynamics for Quantum Chemists – FTIR

Next up in the series of videos by our experts is Rosa, who will give an introduction to Molecular Dynamics for quantum chemists. She will show how to use MD with electronic structure methods (DFTB)...

Improved absolute configuration determination of complex molecules with VCD

All biological systems are three-dimensional and determining the exact configuration of the system is important for pharmaceutical applications and drug design. However, determining 3D-structures is complicated and difficult. Vibrational circular dichroism is a method using...

Fast & efficient plasmonic excitations in metallic nanoparticles

The great potential of employing tight-binding approximations after a regular DFT ground state calculation has been demonstrated in a recent paper. With the TD-DFT+TB approach (see thesis by Robert Rüger), plasmon resonances in large silver, gold,...

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...