Abstract: [Object] To provide a dental adhesive composition that is highly adhesive to both porcelain and a tooth substance, an acid monomer, water, and a silane coupling agent coexisting in the dental adhesive composition, the dental adhesive composition being usable as a one-liquid type adhesive and exhibiting high preservation stability as a one-liquid type adhesive even after long-term preservation, regardless of the type of acid monomer used.

Abstract: An object of the present invention is to provide a transition metal cluster compound by which miniaturization of a circuit pattern can be realized; a photosensitive composition containing the transition metal cluster compound; and a pattern forming method using the photosensitive composition. The transition metal cluster compound is characterized by including 2 or more and 20 or less transition metal atoms and two or more types of carboxy ligands, wherein at least one type of the carboxy ligands includes an alicyclic structure having a double bond.

Abstract: A transition metal cluster compound is capable of realizing fine circuit patterns, a photosensitive composition contains the transition metal cluster compound, and a pattern forming method uses the photosensitive composition. The transition metal cluster compound contains transition metal elements and a ligand represented by the following general formula (1): wherein R1 is a hydrocarbon chain having one or more carbon atom.

Abstract: An iridium complex compound represented by formula (1?) below. R2 to R5 are each selected from a [substituent group W]; R1, R6 to R10, and R14 are a hydrogen atom, F, a methyl group, a trifluoromethyl group, an ethyl group, a vinyl group, or an ethynyl group; R15 and R16 are a linear, branched, or cyclic alkyl group having 1 to 30 carbon atoms, an aralkyl group having 5 to 60 carbon atoms, or a heteroaralkyl group having 5 to 60 carbon atoms; one of R11 to R13 has a structure represented by formula (2) below; and the remaining two are selected from a [substituent group Z].

Abstract: [Object] To provide a dental adhesive composition that is highly adhesive to both porcelain and a tooth substance, an acid monomer, water, and a silane coupling agent coexisting in the dental adhesive composition, the dental adhesive composition being usable as a one-liquid type adhesive and exhibiting high preservation stability as a one-liquid type adhesive even after long-term preservation, regardless of the type of acid monomer used.

Abstract: The present invention relates to an iridium complex compound represented by the following formula (1): in the formula (1), Ir represents an iridium atom, R5 to R14, R21, and R22 each independently represent a hydrogen atom, D, F, Cl, Br, I, or a substituent group, the groups adjacent to each other may be further bonded to each other to form a ring, and any one of R12 and R13 is a substituent group represented by the formula (2).

Abstract: To provide a fluid dynamic bearing lubricating oil base oil which is within a suitable 40° C. and 100° C. kinematic viscosity range capable of achieving both energy saving and high bearing rigidity, and is excellent in viscosity index, heat resistance (evaporation resistance), and low temperature fluidity. Provided is a fluid dynamic bearing lubricating oil base oil containing an isophthalic acid diester compound represented by the following general formula (1) wherein R1 and R2 are the same or different and each represent a linear alkyl group having 6 to 10 carbon atoms.

Abstract: To provide a fluid dynamic bearing lubricating oil base oil which is within a suitable 40° C. and 100° C. kinematic viscosity range capable of achieving both energy saving and high bearing rigidity, and is excellent in viscosity index, heat resistance (evaporation resistance), and low temperature fluidity. Provided is a fluid dynamic bearing lubricating oil base oil containing a trimellitic acid triester compound represented by the following general formula (1) wherein R1 to R3 are the same or different and each represent a linear alkyl group having 6 to 10 carbon atoms.