Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Guishan Zheng"'
Publikováno v:
Journal of Chemical Physics; 7/28/2006, Vol. 125 Issue 4, p044702, 5p, 1 Black and White Photograph, 1 Diagram, 2 Charts, 1 Graph
Publikováno v:
Biochemistry. 52:8539-8555
The Bohr effect in hemoglobin, which refers to the dependence of the oxygen affinity on the pH, plays an important role in its cooperativity and physiological function. The dominant contribution to the Bohr effect arises from the difference in the pK
Publikováno v:
Journal of Chemical Theory and Computation. 6:1413-1427
The replacement of standard molecular mechanics force fields by inexpensive molecular orbital (QM') methods in multiscale models has many advantages, e.g., a more straightforward description of mutual polarization and charge transfer between layers.
Publikováno v:
Molecular Physics. 107:881-887
An implementation of MNDO-type semiempirical methods is described, which include analytic second derivatives and interface to ONIOM hybrid models. Analytic second derivatives are much more efficient than numerical derivatives and have very low cost e
Publikováno v:
The Journal of Physical Chemistry C. 112:12697-12705
The relationship of reaction energies for CH2/NH/O exo- and endo-[2 + 1] cycloadditions to chiral single-walled carbon nanotube (SWNT) sidewalls with the inverse tube diameter (1/d) was investigated using density functional theory (DFT) and density f
Publikováno v:
The Journal of Physical Chemistry C. 111:12960-12972
High-temperature quantum chemical molecular dynamics simulations (QM/MD) based on the density functional tight binding (DFTB) method were performed on SiC surfaces and compared with experimental observations. Following the nucleation of nanocaps on t
Autor:
Marcus Lundberg, Christof Köhler, Djamaladdin G. Musaev, Stephan Irle, Guishan Zheng, Henryk A. Witek, Keiji Morokuma, Marcus Elstner, Thomas Frauenheim, Rajeev Prabhakar, Petia Bobadova-Parvanova
Publikováno v:
Journal of Chemical Theory and Computation. 3:1349-1367
Recently developed parameters for five first-row transition-metal elements (M = Sc, Ti, Fe, Co, and Ni) in combination with H, C, N, and O as well as the same metal (M-M) for the spin-polarized self-consistent-charge density-functional tight-binding
Publikováno v:
Journal of Nanoscience and Nanotechnology. 7:1662-1669
We present a detailed analysis of size-down trajectories of the "Shrinking Hot Giant" road of fullerene formation, revealed before by our quantum chemical molecular dynamics simulations. It is found that shrinkage of giant fullerenes occurs in two st
Publikováno v:
Nano. :21-30
Though subject to intensive studies, the formation mechanism of buckminsterfullerene C 60 and related higher fullerenes has long evaded discovery. To elucidate their atomistic self-assembly mechanism, we have performed high-temperature quantum chemic
Publikováno v:
Journal of the American Chemical Society. 128:15117-15126
The origin of the linear relationship between the reaction energy of the CH2/NH/O exo and endo additions to armchair (n, n) single-walled carbon nanotubes (SWNTs) and the inverse tube diameter (1/d) measuring sidewall curvature was elucidated using d