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  2. List of character tables for chemically important 3D point groups

    en.wikipedia.org/wiki/List_of_character_tables...

    This lists the character tables for the more common molecular point groups used in the study of molecular symmetry.These tables are based on the group-theoretical treatment of the symmetry operations present in common molecules, and are useful in molecular spectroscopy and quantum chemistry.

  3. Platinum(II) sulfide - Wikipedia

    en.wikipedia.org/wiki/Platinum(II)_sulfide

    Platinum(II) sulfide is the inorganic compound with the formula Pt S. It is a green solid, insoluble in all solvents. It is a green solid, insoluble in all solvents. The compound adopts an unusual structure, being composed of square planar Pt and tetrahedral sulfide centers. [ 1 ]

  4. Platinum - Wikipedia

    en.wikipedia.org/wiki/Platinum

    Pt, 192 Pt, 194 Pt, 195 Pt, 196 Pt, and 198 Pt. The most abundant of these is 195 Pt, comprising 33.83% of all platinum. It is the only stable isotope with a non-zero spin. The spin of 1 / 2 and other favourable magnetic properties of the nucleus are utilised in 195 Pt NMR. Due to its spin and large abundance, 195 Pt satellite peaks are also ...

  5. 60 Cute and Spooky Printable Halloween Pumpkin Stencils - AOL

    www.aol.com/lifestyle/60-free-printable-pumpkin...

    Use these free pumpkin carving patterns and stencils to create the best jack-o-lantern on the block. Choose from spooky, cute, and advanced templates. 60 Cute and Spooky Printable Halloween ...

  6. Prothrombin time - Wikipedia

    en.wikipedia.org/wiki/Prothrombin_time

    The prothrombin time ratio is the ratio of a subject's measured prothrombin time (in seconds) to the normal laboratory reference PT. The PT ratio varies depending on the specific reagents used, and has been replaced by the INR. [3] Elevated INR may be useful as a rapid and inexpensive diagnostic of infection in people with COVID-19. [4]

  7. Platinum(IV) chloride - Wikipedia

    en.wikipedia.org/wiki/Platinum(IV)_chloride

    Treatment of PtCl 4 with aqueous base gives the [Pt(OH) 6] 2− ion. With methyl Grignard reagents followed by partial hydrolysis, PtCl 4 converts to the cuboidal cluster [Pt(CH 3) 3 (OH)] 4. [6] Upon heating PtCl 4 evolves chlorine to give PtCl 2: PtCl 4 → PtCl 2 + Cl 2. The heavier halides, PtBr 4 and PtI 4, are also known.

  8. These 55 Printable Pumpkin Stencils Make Carving Easier ... - AOL

    www.aol.com/55-printable-pumpkin-stencils...

    This Halloween 2024, use these printable pumpkin stencils and free, easy carving patterns for the scariest, silliest, most unique, and cutest jack-o’-lanterns. These 55 Printable Pumpkin ...

  9. Platinum disulfide - Wikipedia

    en.wikipedia.org/wiki/Platinum_disulfide

    Platinum disulfide is the inorganic compound with the formula Pt S 2.It is a black, semiconducting solid, which is insoluble in all solvents.The compound adopts the cadmium iodide structure, being composed of sheets of octahedral Pt and pyramidal sulfide centers.