A new spacer-induced organization in highly ordered tin-based hybrid materials

The hydrolysis of a cross-shaped bridged a, -bis(trialkynylstannylated) compound with long alkyl side chains leads to a highly ordered hybrid material with a new type of organization consisting of striped organic–inorganic layers alternating with alkyl chain layers

Particle Growth of Hybrid Materials Followed by Dynamic Light Scattering

The hydrolysis of distannylated compounds in which the tin atoms are linked by an organic spacer has been studied under microemulsion conditions using dynamic light scattering and infrared spectroscopy. The experiments provided evidence that the growth of hybrid material particles occurs in the aqueous phase, outside the organic phase of the microemulsion. The growth rates of the particles were found to be strongly dependent on the nature of the spacers, a polymethylene chain inducing the fastest process. This different behavior was explained by a slower condensation process rather than a slower hydrolysis. The high surface areas measured for the hybrid materials could be explained by a possible coating of the hybrid particles by surfactant molecules, thus preventing either their growth or their aggregation

Low-temperature H2 sensing in self-assembled organotin thin films

Self-assembled nanoporous tin-based hybrid thin films prepared by the sol–gel method from organically-bridged ditin hexaalkynides detect hydrogen gas from 50 to 200 1C at the 200–10 000 ppm level. This finding opens a fully new class of gas-sensing materials as well as a new opportunity to integrate organic functionality in gas sensing metal oxides

Tin-based hybrid materials with a two-level structural hierarchy

Self-assembled tin-based hybrid materials with two levels of hierarchy were obtained spontaneously from the hydrolysis of hexaalkynylorganoditins bridged with an aromatic spacer, while in the case of an aliphatic spacer this phenomenon occurred only in the presence of a surfactant