| 摘要 |
<p>A metal complex having a structure of the following general formula (1): (wherein, X1 and X2 represent independently a carbon atom or nitrogen atom. Bonds represented by X1<img id="CUSTOM-CHARACTER-00001" he="3.13mm" wi="10.58mm" file="US20090043064A1-20090212-P00001.TIF" img-content="character" img-format="tif"/>C and X2<img id="CUSTOM-CHARACTER-00002" he="3.13mm" wi="10.58mm" file="US20090043064A1-20090212-P00001.TIF" img-content="character" img-format="tif"/>N are a single bond or double bond. M represents a transition metal atom. A dihedral angle defined by a plane containing a structure represented by C<img id="CUSTOM-CHARACTER-00003" he="3.13mm" wi="10.58mm" file="US20090043064A1-20090212-P00001.TIF" img-content="character" img-format="tif"/>X1-X2 and a plane containing a structure represented by X1-X2<img id="CUSTOM-CHARACTER-00004" he="3.13mm" wi="10.58mm" file="US20090043064A1-20090212-P00001.TIF" img-content="character" img-format="tif"/>N is 9° to 16°, and the proportion of the sum of squares of orbital coefficients of the outermost d orbital of the metal atom M, in the highest occupied molecular orbital of the metal complex, occupying with respect to the sum of squares of all atom orbital coefficients, is divided by an energy difference S1-T1 between the lowest excitation singlet energy S1 and the lowest excitation triplet energy T1 of the metal complex, to give a value of 200 to 600%/eV.).</p> |
