Superposability of steady axi-symmetrical flows in a non-newtonian fluid

Rathna, S. L.

doi:10.1007/bf03045760

Cited by 4 publications

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Computational calculations have predicted an even shorter Si⋅⋅⋅Si distance (2.06 Å) for the related bicyclic molecule II . The electronic origin of the exceptionally short nonbonded distances, called a “phantom bond”, has been the subject of many experimental and theoretical investigations and several models with particular orbital interactions [unsupported π‐bond model, σ‐bridged π‐bonding model, and cyclic (n,d,d) delocalization model] have been proposed to explain the unusual geometry of 1,3‐disiloxanes. Alternatively, the ring deformation resulting from the elongation of the O⋅⋅⋅O diagonal distance arising from the electrostatic repulsion was also considered .…”

Section: Methodsmentioning

confidence: 99%

Donor‐Stabilized 1,3‐Disila‐2,4‐diazacyclobutadiene with a Nonbonded Si⋅⋅⋅Si Distance Compressed to a Si=Si Double Bond Length

et al. 2016

View full text Add to dashboard Cite

A donor-stabilized 1,3-disila-2,4-diazacyclobutadiene presents an exceptionally short nonbonded Si⋅⋅⋅Si distance (2.23 Å), which is as short as that of Si=Si bonds (2.15-2.23 Å). Theoretical investigations indicate that there is no bond between the two silicon atoms, and that the unusual geometry can be related to a significant coulomb repulsion between the two ring nitrogen atoms. This chemical pressure phenomenon could provide an alternative and superior way of squeezing out van der Waals space in highly strained structures, as compared to the classical physical methods.

show abstract