• The van der Waals radius, rw, of an atom is the radius of an imaginary hard sphere representing the distance of closest approach for another atom. It is...
    27 KB (1,983 words) - 09:48, 9 October 2024
  • Thumbnail for Van der Waals force
    The van der Waals force quickly vanishes at longer distances between interacting molecules. Named after Dutch physicist Johannes Diderik van der Waals, the...
    36 KB (4,020 words) - 11:35, 13 November 2024
  • Thumbnail for Johannes Diderik van der Waals
    with Van der Waals forces (forces between stable molecules), with Van der Waals molecules (small molecular clusters bound by Van der Waals forces), and...
    25 KB (3,021 words) - 13:21, 21 November 2024
  • substituents draw nearer to each other. Van der Waals force Van der Waals molecule Van der Waals radius Van der Waals surface Organic chemistry 4th. Ed.,...
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  • Thumbnail for Atomic radius
    of atomic radius. Four widely used definitions of atomic radius are: Van der Waals radius, ionic radius, metallic radius and covalent radius. Typically...
    32 KB (2,244 words) - 17:46, 20 November 2024
  • Diderik van der Waals: Van der Waals force Van der Waals equation Van der Waals molecule Van der Waals radius Van der Waals surface Van der Waals (crater)...
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  • needed] Also referred to as a van der Waals envelope, the van der Waals surface is named for Johannes Diderik van der Waals, a Dutch theoretical physicist...
    10 KB (1,178 words) - 11:43, 13 November 2024
  • Thumbnail for Van der Waals molecule
    A Van der Waals molecule is a weakly bound complex of atoms or molecules held together by intermolecular attractions such as Van der Waals forces or by...
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  • Born equation Covalent radius Electride Ionic potential Ionic radius ratio Pauling's rules Stokes radius Van der Waals radius On the basis of conventional...
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  • Thumbnail for Molecular mechanics
    simulated as one particle Each particle is assigned a radius (typically the van der Waals radius), polarizability, and a constant net charge (generally...
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  • Thumbnail for Metallic bonding
    The metallic radius is defined as one-half of the distance between the two adjacent metal ions in the metallic structure. This radius depends on the...
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  • Van der Waals strain, or steric strain, occurs when atoms are forced to get closer than their Van der Waals radii allow.: 5  Specifically, Van der Waals...
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  • Thumbnail for Chlorine
    ionic radius, and X–X bond length. (Fluorine is anomalous due to its small size.) All four stable halogens experience intermolecular van der Waals forces...
    117 KB (13,065 words) - 23:27, 9 November 2024
  • Thumbnail for Bromine
    is 331 pm within a layer and 399 pm between layers (compare the van der Waals radius of bromine, 195 pm). This structure means that bromine is a very...
    67 KB (7,719 words) - 23:39, 21 November 2024
  • Bibcode:1964JChPh..41.3199S. doi:10.1063/1.1725697. A. Bondi (1964). "van der Waals Volumes and Radii". The Journal of Physical Chemistry. 68 (3): 441–451...
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  • Thumbnail for Potassium tetracyanonickelate
    Ni---Ni distances of 4.294 Å, which is well beyond the sum of the van der Waals radius of the nickel cation. This columnar structure resembles those of...
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  • Thumbnail for Space-filling model
    van der Waals radius of each atom of the molecule, and crafted atoms as hardwood spheres of diameter proportional to each atom's van der Waals radius...
    11 KB (995 words) - 11:48, 13 November 2024
  • Thumbnail for Krypton
    K.; Amboage, Mónica; Jephcoat, Andrew P. (2014). "New high-pressure van der Waals compound Kr(H2)4 discovered in the krypton-hydrogen binary system"....
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  • Thumbnail for Sodium
    2016. Retrieved 11 September 2016. van Rossen, G. L. C. M.; van Bleiswijk, H. (1912). "Über das Zustandsdiagramm der Kalium-Natriumlegierungen". Zeitschrift...
    69 KB (8,043 words) - 01:28, 30 October 2024
  • Thumbnail for Gold
    that are too long to be a conventional Au–Au bond but shorter than van der Waals bonding. The interaction is estimated to be comparable in strength to...
    142 KB (16,014 words) - 01:41, 11 November 2024
  • Thumbnail for Ramachandran plot
    has only a hydrogen atom for its side chain, with a much smaller van der Waals radius than the CH3, CH2, or CH group that starts the side chain of all...
    16 KB (1,761 words) - 05:00, 29 October 2024
  • Thumbnail for Potassium
    über die Zersetzung der feuerbeständigen Alkalien, die Darstellung der neuen Körper, welche ihre Basen ausmachen, und die Natur der Alkalien überhaupt"...
    94 KB (10,912 words) - 14:36, 19 November 2024
  • Thumbnail for Lithium
    Archived from the original on 5 June 2008. Retrieved 10 August 2009. van der Krogt, Peter. "Lithium". Elementymology & Elements Multidict. Archived...
    141 KB (13,770 words) - 00:30, 22 November 2024
  • Thumbnail for Orders of magnitude (volume)
    Retrieved 10 March 2006. Kaler, Jim, Alcyone, retrieved 18 November 2008: "radius nearly 10 solar" Mozurkewich, David; Armstrong, J. Thomas; Hindsley, Robert...
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  • Thumbnail for Platinum
    1st: 870 kJ/mol 2nd: 1791 kJ/mol Atomic radius empirical: 139 pm Covalent radius 136±5 pm Van der Waals radius 175 pm Spectral lines of platinum Other...
    66 KB (7,080 words) - 22:48, 12 September 2024
  • Thumbnail for Neon
    are primarily ionic molecules or fragile molecules held together by van der Waals forces. The synthesis of most neon in the cosmos resulted from the nuclear...
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  • Thumbnail for Phosphorus
    neighbouring tetrahedron resulting in chains of P21 molecules linked by van der Waals forces. Red phosphorus may be formed by heating white phosphorus to...
    109 KB (12,801 words) - 13:56, 9 November 2024
  • Thumbnail for Conformational isomerism
    proximity than the sum of their van der Waals radii. The interaction between the two methyl groups is repulsive (van der Waals strain), and an energy barrier...
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  • Thumbnail for Carbon
    the resulting flat sheets are stacked and loosely bonded through weak van der Waals forces. This gives graphite its softness and its cleaving properties...
    95 KB (10,860 words) - 12:57, 7 November 2024
  • Thumbnail for Hydrogen
    (2): 97–107. doi:10.1023/A:1010655610575. PMID 11513367. S2CID 13159020. van der Krogt, P. (5 May 2005). "Hydrogen". Elementymology & Elements Multidict...
    121 KB (12,377 words) - 14:27, 16 September 2024