The present invention provides PC.sub.NHCP pincer metal complexes, which are useful as catalysts in various chemical reactions such as hydrogen isotope exchange (HIE) in C(sp.sup.3)-H and/or C(sp.sup.2)-H bond of an organic compound, e.g., a pharmaceutically active compound; hydroboration of alkynes with excellent selectivity; and alkene isomerization with high stereo- and regioselectivity.

The present invention provides PC.sub.NHCP pincer metal complexes, which are useful as catalysts in various chemical reactions such as hydrogen isotope exchange (HIE) in C(sp.sup.3)-H and/or C(sp.sup.2)-H bond of an organic compound, e.g., a pharmaceutically active compound; hydroboration of alkynes with excellent selectivity; and alkene isomerization with high stereo- and regioselectivity.

The present invention relates to a saturated aliphatic hydrocarbon compound composition having an evaporation loss of 4% by mass or less as determined by the Noack method, a kinetic viscosity at 100° C. of 6.5 mm.sup.2/s or less, and an average carbon number of 36 to 44, to a lubricating oil composition containing the saturated aliphatic hydrocarbon compound composition, and to a method for producing a saturated aliphatic hydrocarbon compound composition, including: a step 1 of oligomerizing an olefin to obtain an olefin oligomer; a step 2 of isomerizing the olefin oligomer to obtain an isomer; and a step 3 of hydrogenating the isomer.

The present invention relates to a saturated aliphatic hydrocarbon compound composition having an evaporation loss of 4% by mass or less as determined by the Noack method, a kinetic viscosity at 100° C. of 6.5 mm.sup.2/s or less, and an average carbon number of 36 to 44, to a lubricating oil composition containing the saturated aliphatic hydrocarbon compound composition, and to a method for producing a saturated aliphatic hydrocarbon compound composition, including: a step 1 of oligomerizing an olefin to obtain an olefin oligomer; a step 2 of isomerizing the olefin oligomer to obtain an isomer; and a step 3 of hydrogenating the isomer.

A saturated aliphatic hydrocarbon compound composition having an evaporation loss of 4% by mass or less as determined by the Noack method, a kinetic viscosity at 100 C. of 6.5 mm2/s or less, and an average carbon number of 36 to 44. A lubricating oil composition may contain such a saturated aliphatic hydrocarbon compound composition. A method for producing a saturated aliphatic hydrocarbon compound composition, may include: (1) oligomerizing an olefin to obtain an olefin oligomer; (2) isomerizing the olefin oligomer to obtain an isomer; and (3) hydrogenating the isomer.

A saturated aliphatic hydrocarbon compound composition having an evaporation loss of 4% by mass or less as determined by the Noack method, a kinetic viscosity at 100 C. of 6.5 mm2/s or less, and an average carbon number of 36 to 44. A lubricating oil composition may contain such a saturated aliphatic hydrocarbon compound composition. A method for producing a saturated aliphatic hydrocarbon compound composition, may include: (1) oligomerizing an olefin to obtain an olefin oligomer; (2) isomerizing the olefin oligomer to obtain an isomer; and (3) hydrogenating the isomer.

PC.sub.NHCP pincer metal complexes are useful as catalysts in various chemical reactions such as hydrogen isotope exchange (HIE) in C(sp.sup.3)-H and/or C(sp.sup.2)-H bond of an organic compound, e.g., a pharmaceutically active compound. The complexes are also useful in hydroboration of alkynes with excellent selectivity; and alkene isomerization with high stereo- and regioselectivity.