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Polymer monolith materials of 2 mm thickness with open interconnected pores were obtained by a visible light induced radical polymerization of carbonate-or phthalate containing dimethacrylate in the presence of aliphatic alcohols (60 to 70 wt %) as porogenic additives. Obtained materials absorb water easily and reveal a specific surface area of 3.1 to 21.5 m 2 g À 1 and a porosity of 55-72%. According SEM data the porous monoliths consist of polymer particles (size up to 1 μm) that form 3D structures with a pore size up to 5 μm for poly (carbonatedimethacrylate) and tens of microns for phthalatecontaining polydimethacrylates. Mesenchymal stem cells from the bone marrow (MSC-BM) of the pig were picked out and characterized. The MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) tests on polymers obtained have shown their non-cytotoxicity. MSC-BMs spread out well on the polymeric samples and retained their viability and typical morphology during 7 days. Adhesion and viability of MSCs on the surface of materials were detected by calcein staining. The data obtained indicate that the porous polymers derived from dimethacrylates might be promising for construction of plastics for bone grafting.

The reactivity of neodymium diiodide, NdI2 (1), towards organosilicon, ‐germanium and ‐tin halides has been investigated. Compound 1 readily reacts with Me3SiCl in DME to give trimethylsilane (6 %), hexamethyldisilane (4 %) and (Me3Si)2O (19 %). The reaction with Et3SiBr in THF results in formation of Et3SiSiEt3 (17 %) and Et3SiOBun (34 %). Alkylation of Me3SiCl with PrnCl in the presence of 1 in THF affords Me3SiPrn (10 %), Me3SiOBun (52 %) and Me3SiSiMe3 (1 %). The main product identified in the reaction mixture formed upon interaction of 1 with dichlorodimethylsilane Me2SiCl2 in THF is di‐n‐butoxydimethylsilane Me2Si(OBun)2 (54 %) together with minor amounts of Me2Si(OBun)Cl. The reaction of 1 with Me3GeBr under the same conditions produces Me3GeGeMe3 (44 %), Me3GeH (3 %), and Me3GeI (7 %). An analogous set of products was obtained in the reaction with Et3GeBr. Treatment of trimethyltin chloride with 1 causes reduction of the former to tin metal (74 %). Me3SnH (7 %) and hexamethyldistannane (11 %) were identified in the volatile products. The reaction of 1 with Me3SiI provides straightforward access to hepta‐coordinated NdI3(THF)4 (2), the structure of which was determined by X‐ray diffraction.

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