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Topic: Octahedral number


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In the News (Fri 1 Jan 10)

  
 [No title]   (Site not responding. Last check: 2007-11-07)
is the number of planar partitions of 10.
is the number of planar partitions of 11.
is the number of planar partitions of 12.
home.comcast.net /~tdk500/Specialno.html   (6437 words)

  
 85 (number) - Wikipedia, the free encyclopedia
Eighty-five is an octahedral number, a centered triangular number, a centered square number, a decagonal number, and a Smith number.
The Saros number of the solar eclipse series which began on -170 March 14 and ended on 1110 April 20.
Further, the Saros number of the lunar eclipse series which began on -103 August 2 and ended on 1267 November 3.
en.wikipedia.org /wiki/85_(number)   (242 words)

  
 What's Special About This Number?
is the smallest number n with sigma(n) = sigma(n+3).
is the smallest of 6 consecutive numbers divisible by 6 consecutive primes.
is the number of graceful permutations of length 12.
www.stetson.edu /~efriedma/numbers.html   (7257 words)

  
 [No title]
"The number of extensions of a number field with fixed degree and bounded discriminant", with A. Venkatesh, to appear, Ann.
An old conjecture holds that the number N_n(X) of degree n number fields with discriminant less than X is asymptotic to c_n X when X grows and n is fixed.
octahedral forms of conductor N associated to a given such Phi.
www.math.princeton.edu /~ellenber/papers.html   (1945 words)

  
 Slides33   (Site not responding. Last check: 2007-11-07)
Leaving the discussion of coordination number = 6 (octahedral geometries) and proceeding to coordination number four.
Removing the ligands (charges) along the z-axis to an infinite distance from the central species converts the octahedral geometry to a square planar geometry.
Returning to an octahedral geometry, we look at the effect of having a weak ligand plus five stronger ligands.
www.andrew.cmu.edu /course/09-105/Slides33a.html   (355 words)

  
 19 (number) - Art History Online Reference and Guide
Nineteen is a centered triangular number, centered hexagonal number, and an octahedral number.
The Saros number of the solar eclipse series which began on -2333 June 15 and ended on -1035 August 1.
The number of angels guarding Hell according to the Qur'an: "Upon it is nineteen" (74:30)
www.arthistoryclub.com /art_history/19th   (497 words)

  
 Slides33   (Site not responding. Last check: 2007-11-07)
If that spherical distribution were instead clumped at the corners of an octahedron, the energies could go up further, or down some, depending on whether or not they pointed directly at the concentrations of charge.
2 orbital in an octahedral crystal field points directly at some of the field charges.
2 orbital in an octahedral field also points directly at some of the field charges.
www.andrew.cmu.edu /course/09-105/S98Slides32.html   (620 words)

  
 Hope College ChemBoard   (Site not responding. Last check: 2007-11-07)
In close packing (ccp or hcp), the number of octahedral holes equals the number of atoms and the number of tetrahedral holes equals two times the number of atoms.
For example, for NaCl the coordination number of the sodium cations is 6 (there are 6 chlorides touching each sodium) and the coordination geometry is octahedral.
Chapter 8, number 6; We are drawing the MO for BF.
mulliken.chem.hope.edu /~chemboard/s00/messages/27/41.html   (1775 words)

  
 Table of Figurate Numbers, Sorted, Through 10,000
Hendecagonal Number, or 11-gonal number, Hen(16), hence the Heterogeneous Jonathan Number Hen(S(4))
Octahedral Number Octh(12), the 1156th Dodecagonal Number is also a Square, also the Centered Pentagonal Number CP(22), also a Square, S(34), also the 43-gonal Number, 43gon(8), also the Heterogeneous Jonathan Number 43gon(C(2))
Hendecagonal Number, or 11-gonal number, Hen(25), hence the Heterogeneous Jonathan Number Hen(S(5))
www.magicdragon.com /fig.html   (10985 words)

  
 Polymorf - Knowhwere- Octahedral summary   (Site not responding. Last check: 2007-11-07)
occupation of the interstitial voids determined the number and types of linkage
The number of octahedral interstices in a crystal structure is equal to the number of
occupation rate of their octahedral voids can be deduced a priori.
www.polymorf.net /matter46.htm   (128 words)

  
 [No title]   (Site not responding. Last check: 2007-11-07)
OBJECT: to identify the OCTAHEDRAL sites within a Face-Centered Cubic (FCC) unit cell.
Move the display and note the spacial and geometrical arrangement of atoms.
Determine the net number of octahedral sites within the FCC unit cell.
www.luc.edu /faculty/spavko1/c105/lect/Mage/fcc-sites/oh.htm   (37 words)

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