Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Hexagonal antiprism"'
Publikováno v:
Inorganic Chemistry. 60:12489-12497
The crystal structure of Th(BH4)4 is described. Two of the four BH4- ions are terminal and tridentate (κ3), whereas the other two bridge between neighboring ThIV centers in a κ2,κ2 (i.e., bis-bidentate) fashion. Thus, each thorium center is bound
Publikováno v:
Physical Chemistry Chemical Physics. 22:2437-2448
The diferratetracarbaboranes Cp2Fe2C4Bn-6Hn-2 (n = 10 to 14; Cp = η5-C5H5) as well as the experimentally known C-tetramethyl derivatives Cp2Fe2C4Me4B8H8 have been studied by density functional theory methods. For the Cp2Fe2C4Me4B8H8 system, the thre
Transformation between Hexagonal Prism and Antiprism of the Singly and Doubly Cr-Doped Ge12 Clusters
Publikováno v:
The Journal of Physical Chemistry A. 123:10721-10729
Structural transformation is a unique characteristic of atomic clusters, but it turns out very different from cluster to cluster. This theoretical study proves that the isomeric transformation between hexagonal prism and hexagonal antiprism is found
Autor:
R. Bruce King
Publikováno v:
Molecules
Volume 25
Issue 14
Molecules, Vol 25, Iss 3113, p 3113 (2020)
Volume 25
Issue 14
Molecules, Vol 25, Iss 3113, p 3113 (2020)
The combination of atomic orbitals to form hybrid orbitals of special symmetries can be related to the individual orbital polynomials. Using this approach, 8-orbital cubic hybridization can be shown to be sp3d3f requiring an f orbital, and 12-orbital
Publikováno v:
The Journal of Physical Chemistry A. 122:9886-9893
Cr nSi15- n- ( n = 1-3) clusters were investigated by using size-selected anion photoelectron spectroscopy combined with density functional theory calculations. The results show that the most stable structure of CrSi14- is of C2 v symmetry with the C
Publikováno v:
The Journal of Physical Chemistry C. 121:11851-11861
We measured the photoelectron spectra of Nb2Sin– (n = 2–12) anions and investigated the geometric structures and electronic properties of Nb2Sin– anions and their neutral counterparts with ab initio calculations. The most stable structures of N
Publikováno v:
Glass Physics and Chemistry. 43:115-124
Modeling of the cluster self-assembly of icosahedral structure of Sc12B185C9 (P6/mmm, hP212, V = 1641.7 A3) boride has been performed. The suprapolyhedral cluster-precursor of the crystal structure Sc12B185C9 containing 84 boron atoms that consists o
Publikováno v:
Nanomaterials, Vol 7, Iss 7, p 164 (2017)
Nanomaterials; Volume 7; Issue 7; Pages: 164
Nanomaterials; Volume 7; Issue 7; Pages: 164
The V-centered bicapped hexagonal antiprism structure (A), as the most stable geometry of the cationic V15+ cluster, is determined by using infrared multiple photo dissociation (IR-MPD) in combination with density functional theory computations. It i
Publikováno v:
Nanoscale. 6:14617-14621
Our studies show that VSi(12)(-) adopts a V-centered hexagonal prism with a singlet spin state. The addition of the second V atom leads to a capped hexagonal antiprism for V(2)Si(12)(-) in a doublet spin state. Most interestingly, V(3)Si(12)(-) exhib
Autor:
A. N. Chekhlov
Publikováno v:
Russian Journal of Coordination Chemistry. 35:222-225
A new complex [Cs(Db18C6)2]+[FeCl4]− was prepared and studied by X-ray diffraction (orthorhombic, space groupP21212,a = 22.934 A,b= 24.024 A,c= 16.665 A,Z= 8; direct method, anisotropic full-matrix least-squares refinement,R= 0.087 for all 8800 ind