Abstract: The disclosure relates to methods of selectively depositing material comprising a group 3 to 6 transition metal on a first surface of a substrate relative to a second surface of the substrate by a cyclic deposition process. The method includes providing a substrate in a reaction chamber, providing a transition metal precursor into the reaction chamber in a vapor phase, wherein the transition metal precursor comprises an aromatic ligand and providing a second precursor into the reaction chamber in a vapor phase to deposit transition metal on the first surface of the substrate. The disclosure further relates to a transition metal layers, and to deposition assemblies.

Abstract: An iron or wedge golf club head (1) has a hitting surface (2) on a front area, a shaft connection (3) on one side (4), a back area (5) and a bottom surface (6) between the front area and a back edge (8) of the bottom surface in relation to the hitting surface and shaft connection. Only one center area of the bottom surface (6) has a curved recessed area (9) that increases evenly in depth towards the front area only from an area (10) inside the back edge (8) of the bottom surface.

Abstract: This invention relates to a new nitration system, and a new method for nitration of aromatic compounds. The nitration system comprises dinitrogen pentaoxide dissolved in an organic solvent, and after having generated an intermediate therein, this reaction mixture is poured into a water solution of a selected nucleophile. The nucleophile preferably comprises a hydrogen sulphite ion, sulphite ion or sulphur dioxide.

Abstract: Nitration of aromatics wherein gasified aromatic compounds and nitric acid are contacted with a silicon-aluminum catalyst.