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| Nucleophilic addition of NH3, ethylamine, and diethylamine readily occur at the C atom of the hy-drogen cyanamide ligand of 4 to pro-duce osmium guanidine complexes with the general formula [OsIII{N(H)C-(NH2)NR1R2}( L3)(CN)3], which havebeen isolated as PPh4 salts (R1= R2= H( 7 ); R1= H, R2= CH2CH3(8 ); R1=R2= CH2CH3 ( 9 )). The molecularstructures of 1 ¨C 5 and 7 and 8 have been determined by X-ray crystallogra-phy. |
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alexwang0521: ½ð±Ò+10, ·ÒëEPI+1, ¡ï¡ï¡ïºÜÓаïÖú 2012-04-22 12:52:06
alexwang0521: ½ð±Ò+10, ·ÒëEPI+1, ¡ï¡ï¡ïºÜÓаïÖú 2012-04-22 12:52:06
| °±£¬ÒÒ°·£¬¶þÒÒ°·¶Ô»¯ºÏÎï4µÄHCNÖеÄ̼½øÐÐÇ׺˼ӳɣ¬µÃµ½ï°ëÒÅäºÏÎï[OsIII{N(H)C-(NH2)NR1R2}( L3)(CN)3]¡£ÕâÖÖï°ëÒÅäºÏÎï·ÖÀë×÷ΪPPh4ÑÎ(R1= R2= H( 7 ); R1= H, R2= CH2CH3(8 ); R1=R2= CH2CH3 ( 9 ))¡£»¯ºÏÎï1£5¼°7ºÍ8 µÄ·Ö×ӽṹÒÑÓÉX£ÉäÏß¼ì²â¡£ |

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