Orbital Models

These Orbital models, designed by Dr. A.H. Norbury, of the Loughborough University of Technology, demonstrate the angular distribution of the s, p, d, and f orbitals. They may be used to illustrate a number of aspects of Molecular Orbital Theory and Crystal Field Theory. Being presented in three dimensions they are much easier to understand than two dimensional drawings.

Orbital: Dxy
The models which are 27cm high, are moulded in tough polystyrene mounted on stainless steel axes. Red is used for the positive lobes and yellow for the negative lobes. The effect of point charges can be shown by small white balls, mounted on the ends of the axes to illustrate octahedral geometry, or on separate frames for tetrahedral geometry. Loose p orbitals and sp hybrid orbitals are also supplied to slip onto the axes for demonstrating the forms of various molecular orbitals. 

The complete set consists of sixteen models of orbitals: one s, three p, five d, and seven f together with twenty-two sp hybrid orbitals (thirteen with large positive lobes and nine with negative) and twenty loose p orbitals. Also included are nine subsidiary frames to illustrate tetrahedral geometry and sixty small white balls for showing the effect of point charges. Smaller sets are also available and individual models may be purchased separately.

Sets

Catalogue Number Sets Price 
Orb 1 Complete set comprising 1 s, 3 p, 5 d and 7 f orbitals, 22 sp hybrid orbitals (13 large positive lobes and 9 with negatives), 20 loose p orbitals, 9 tetrahedral frames and 60 white balls for field point charges 1249.86
Orb 2 Part set comprising all s, p and d orbitals, 10 sp hybrid orbitals (6 with large positive lobes and 4 with negative) 10 loose p orbitals, 6 tetrahedral frames and 30 white balls for field point charges 624.12
Orb 2 Part set comprising 1s, 1 p and 3 d orbitals 10 sp hybrid orbitals (6 with large positive lobes and 4 with negative) 10 loose p orbitals, 6 tetrahedral frames and 30 white balls for field point charges. 495.00

Individual Models

Catalogue Number Individual Model Price   Catalogue Number Individual Model Price
Orb 4 s orbital 20.50   Orb 12 dx2-y2 34.38
Orb 5 px 22.10   Orb 13 fz3 34.38
Orb 6 py 22.10   Orb 14 fy3

34.38
Orb 7 pz 22.10   Orb 15 fx3 34.38
Orb 8 dz2 24.40   Orb 16 fxyz 51.90
Orb 9 dxy 30.10   Orb 17 fx(y2-z2) 51.90
Orb 10 dyz 30.10   Orb 18 fy(z2-x2) 51.90
Orb 11 dzx 30.10   Orb 19 fz(x2-y2) 51.90
Orb 20 sp hybrid orbital with large positive lobe 16.43
Orb 21 sp hybrid orbital with large negative lobe 16.43
Orb 22 loose p orbital 11.00
Orb 23 Tetrahedral frame 11.00
Orb 24 White balls per dozen

3.27

The above prices are ex works. Packing, postage/delivery charges extra at cost.

VAT extra at current rate. Subject to our Standard Conditions of Sale.