Platinum chains

One-dimensional inorganic platinum-chain electrical conductors. J. M. Williams, Adv. Inorg. Chem. Radiochem., 1983,26,235-268 (107). 

Figure 10 (a) Splitting apart of the half-filled band on the asymmetric distortion of Figure 8a. This is the higher of the two bands of Figure 9(a). Notice the change in orbital character as a result of a Peierls distortion for the platinum chain, (b) Plot of orbital energy vs k, showing the orbitals most strongly affected.

Hubbard (13) elucidated a mathematical description of the change from one situation to another for the simplest case of a half-filled s band of a solid. His result is shown in Figure 11. For ratios of W/U greater than the critical value of 2/ /3 then a Fermi surface should be found and the system can be a metal. This critical point is associated with the Mott transition from metal to insulator. At smaller values than this parameter, then, a correlation, or Hubbard, gap exists and the system is an antiferromagnetic insulator. Both the undoped 2-1 -4 compound and the nickel analog of the one dimensional platinum chain are systems of this type. At the far left-hand side of Figure 11 we show pictorially the orbital occupancy of the upper and lower Hubbard bands. 

Figure 2.6 Chloro-bridged linear platinum chains dispersed as aggregates of a poly ion complex with a sulfonate amphiphile.

One-Dimensional Inorganic Platinum-Chain Electrical Conductors Jack M. Williams... 

O3BF4RU2C15H13, Ruthenium(l+), jLCarbonic acid cobalt complexes, 21 120, 23 107, 112 platinum chain complex, 21 153, 154... 

MO calculations based on the neutral Pt(mnt)2 molecule show that, as expected, the overlap integrals along the face-to-face stacking direction are much larger than the interstack overlap integrals. " The overlap integral of the orbital in the platinum chain is one-tenth of those found... 

Compounds Containing Nickel, Palladium, and Platinum Chains... 

Inner Transition Metal Complexes With Chains of Metal Atoms 103 9.2.12.1. Compounds Containing Nickel, Palladium, and Platinum Chains 9.2.12.1.4. Halogen-Oxidized Complexes Containing 7t-Delocalized Ligands. 

H08S2, [Hydrogen bis(sulfate)] platinum chain complexes, 21 151 H2FeOi3Os3Ci3, Osmium, tridecacarbonyldihydridoirontri-, 21 63 H2FeOi3Ru3Ci3, Iron, tridecacarbonyldihydridotriruthenium-,... 

N2S3H8, Ammonium pentasulfide, 20 12 N3, Azido, platinum chain complexes, 21 149 N3RI1S15H12, Rhodate(III), tris(pentasulfido)-, triammonium, 21 15... 

O3CH2, Carbonic acid, platinum chain complex, 21 153, 154... 

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