This study is relevant since the formation of methodologies to improve the efficiency of innovative leasing-based companies is vital since the leasing form of financing are significant in updating the fixed assets of small and medium enterprises. The aim is to create an original leasing tool to improve the efficiency of innovative companies. The study uses comparative analysis, economic and mathematical modeling of synthesis, and graphical methods of data processing. Methodology to use leasing tools to improve the efficiency of innovative enterprises are presented. The result is the method of calculating lease payments for operating leasing regarding both the method of calculating depreciation based on the sum of years and the amounts of insurance payments for financial and property insurance. This method allows those who uses operational leasing to vary the indicators that form the lease payment through a variable coefficient of the depreciable part of the leasing property.

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.

Several high molecular weight poly(alkylene phosphorothioate)s were synthesized by reacting poly(H-phosphonate)s with sulfur. The molecular weight of the resulting polymers are similar to the respective starting poly(alkylene H-phosphonate)s indicating that during sulfurization process no chain degradation occurred. The structure of poly(alkylene phosphorothioate)s was confirmed by the analysis of 1H, 13C and 31P NMR spectra.

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