Accuracy

yttrium, cation   4543 Yttrium, cation

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    #  Species Formula
  4533 cis-Sr(II)(H2O)4.Cl2 (Geo)H8O4Cl2Sr
  4534 Strontium monobromide (Geo)BrSr
  4535 Strontium monobromideBrSr
  4536 Sr(II)(H2O)5.BrH10O5BrSr
  4537 Sr(II)(H2O)5.Br (Geo)H10O5BrSr
  4538 Strontium dibromideBr2Sr
  4539 Sr(II)N5Br2 (TANWAG) (Geo)C25H25N5Br2Sr
  4540 Sr(II)N5Br2 (TANWAG)C25H25N5Br2Sr
  4541 cis-Sr(II)(H2O)4.Br2H8O4Br2Sr
  4542 cis-Sr(II)(H2O)4.Br2 (Geo)H8O4Br2Sr
  4543 Yttrium, cation Y
  4544 Yttrium, atomY
  4545 Trimethyl yttrium(III) (Geo)C3H9Y
  4546 Bicyclopentadienyl yttrium(II) (Geo)C10H10Y
  4547 Tricyclopentadienyl yttrium(III)C15H15Y
  4548 Y(Cp)2CN (CIGZEX) (Geo)C19H22NY
  4549 Y(Cp)2CN (CIGZEX)C19H22NY
  4550 Y(III)N3 (FAMVEV) (Geo)C27H54N3Y
  4551 Y(III)N3 (FAMVEV)C27H54N3Y
  4552 Y(II)(NH3)6H18N6Y
  4553 Y(II)(NH3)6 (Geo)H18N6Y


ΔHf: 244.0 kcal/mol,     REF: NIST Chemistry WebBook, NIST Standard Reference Database, No. 69; W. G. Mallard, P. J. Linstrom, Eds., National Institute of Standards and Technology, Gaithersberg, http://webbook.nist.gov/chemistry.
  
 OPEN(2,9) MECI CHARGE=1 PM7
Yttrium, cation
 HR=NIST H=244.0
  Y     0.00000000 +0   0.00000000 +0   0.00000000 +0