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Wiberg bond index matrix in the NAO basis: Atom 1 2 3 4 5 6 7 ---- ------ ------ ------ ------ ------ ------ ------ 1. C 0.0000 0.9964 0.9472 0.9394 0.9394 0.0020 0.0020 2. N 0.9964 0.0000 0.0208 0.0052 0.0052 0.8611 0.8611 3. H 0.9472 0.0208 0.0000 0.0004 0.0004 0.0002 0.0002 4. H 0.9394 0.0052 0.0004 0.0000 0.0009 0.0079 0.0005 5. H 0.9394 0.0052 0.0004 0.0009 0.0000 0.0005 0.0079 6. H 0.0020 0.8611 0.0002 0.0079 0.0005 0.0000 0.0003 7. H 0.0020 0.8611 0.0002 0.0005 0.0079 0.0003 0.0000 Wiberg bond index, Totals by atom: Atom 1 ---- ------ 1. C 3.8265 2. N 2.7499 3. H 0.9691 4. H 0.9544 5. H 0.9544 6. H 0.8720 7. H 0.8720 This index is intrinsically a positive quantity, making no distinction between net bonding or antibonding character of the density matrix elements. The next segment tabulates the "overlap-weighted NAO bond order," as shown below: Atom-atom overlap-weighted NAO bond order: Atom 1 2 3 4 5 6 7 ---- ------ ------ ------ ------ ------ ------ ------ 1. C 0.0000 0.7815 0.7614 0.7633 0.7633 -0.0103 -0.0103 2. N 0.7815 0.0000 -0.0225 -0.0097 -0.0097 0.6688 0.6688 3. H 0.7614 -0.0225 0.0000 -0.0039 -0.0039 -0.0019 -0.0019 4. H 0.7633 -0.0097 -0.0039 0.0000 0.0024 0.0038 -0.0032 5. H 0.7633 -0.0097 -0.0039 0.0024 0.0000 -0.0032 0.0038 6. H -0.0103 0.6688 -0.0019 0.0038 -0.0032 0.0000 -0.0069 7. H -0.0103 0.6688 -0.0019 -0.0032 0.0038 -0.0069 0.0000 Atom-atom overlap-weighted NAO bond order, Totals by atom: Atom 1 ---- ------ 1. C 3.0488 2. N 2.0772 3. H 0.7273 4. H 0.7527 5. H 0.7527 6. H 0.6503 7. H 0.6503 This index corresponds to a sum of off-diagonal NAO density matrix elements between atoms, each multiplied by the corresponding PNAO overlap integral. ÒÔÉÏÊǼÆËãCH3-NH2µÄÒ»¸öÀý×Ó£¬Èç¹ûÊÇÒ»¸ö¼òµ¥µÄH2·Ö×ӵļü¼¶ÓóɼüÊý¼õÈ¥·´¼üÊýÔÙ³ýÒÔ2ÎÒ»¹¿ÉÒÔÀí½â¡£ÏÖÔÚÓÐÈý¸öÎÊÌâÇë½Ì£º 1£¬¶ÔÕâÑùÒ»¸ö¶àÔ×ÓÌåϵ£¬µÃ³öµÄ¾ØÕóÈçºÎ¿´¼ü¼¶£¿Ï£ÍûÖªµÀµÄ´óÏÀÄܸøÏêϸ½âÊÍһϡ£ 2£¬Èç¹ûËùÓоØÕóÔªµÄÊý¶¼±È1СºÜ¶àÄÜ˵Ã÷ʲô£¿¼üºÜÈõÂ𣿠3£¬Èç¹ûÎÒ¼ÆËãµÄÌåϵÓÐÒ»¸öµ¥µç×Ó£¬ÄÇô¼ÆËã³öÀ´µÄWiberg bond index matrixÓÐÈýÏ·Ö±ðÊÇtotal£¬alpha£¬betaÈýÏÎÒ¸ÃÔõôÌÖÂÛ£¿£¨alpha+beta£©*2ºÍtotalÓÐÊ²Ã´Çø±ð£¿ 4£¬¶ÔÉÏÃæÊä³öÎļþµÄ×¢ÊÍÎÒÒ²²»ÊǺܶ®£¬ÄÜ·ñ¸ø°³½âÊÍһϣ¿ Ï£ÍûÖªµÀµÄ³æ×ÓÄܸøÎÒÏêϸ½âÊÍһϡ£·Ç³£¸Ðл£¡ÎªÁ˸Ðл³æ×ÓµÄÈÈÐÄ£¬Äܹ»½â¾öÎÒÕ⼸¸öÎÊÌâµÄ¿ÉÒÔÔùËÍ5¸ö½ð±Ò£¨ÎҵĽð±ÒÒ²²»¶à£¬²»¶àËÍÁË£©¡£²»¹ýÎÒ²»»á£¬Âé·³°æÖ÷°ïæ°É¡£ |
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1 Õý½»µÄ¼´ÊÇÏàÓ¦µÄ¼ü¼¶: £¨¾ØÕó±ØÊǶԽÇÕó£© 1C - 2N =0.9964 Atom 1 2 3 4 5 6 7 ---- ------ ------ ------ ------ ------ ------ ------ 1. C 0.0000 0.9964 0.9472 0.9394 0.9394 0.0020 0.0020 2. N 0.9964 0.0000 0.0208 0.0052 0.0052 0.8611 0.8611 3. H 0.9472 0.0208 0.0000 0.0004 0.0004 0.0002 0.0002 4. H 0.9394 0.0052 0.0004 0.0000 0.0009 0.0079 0.0005 5. H 0.9394 0.0052 0.0004 0.0009 0.0000 0.0005 0.0079 6. H 0.0020 0.8611 0.0002 0.0079 0.0005 0.0000 0.0003 7. H 0.0020 0.8611 0.0002 0.0005 0.0079 0.0003 0.0000 2 Èç¹ûÊǹ²¼Û¼ü£¬ ¿ÉÒÔÈÏΪÊÇ£¬Àë×Ó¼üÔÚwibeger ¼ü¼¶ÉϱíÏÖÒ²±È½ÏС¡£µ«Ò²Äܵ½0.£¿µÄ³Ì¶È£¬Èç¹ûÊÇ0.0£¿£¬ 0.00£¿ ¾ÍÊÇÈÏΪºÜÈõÁË¡£ 3 »¹Ã»ÓÐ×ö¹ý¡£ 4 ²»¶®£¬ [ Last edited by spkeey on 2008-9-22 at 22:08 ] |

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