²é¿´: 286  |  »Ø¸´: 3
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£

yutm63

½ð³æ (³õÈëÎÄ̳)

[½»Á÷] ÇóÖúÓлú´ß»¯Ò»¶ÎÎÄ×Ö£¨ÖÐÒëÓ¢£©

ÀûÓÃMCM-41µÈ·Ö×Óɸ¾ßÓдó¿×½á¹¹µÄÌØµãÒÔ¼°Æä±íÃæSi-OH¿ÉÍé»ù»¯µÄÄÜÁ¦£¬ÔÚ·Ö×Óɸ¿×µÀÄںϳÉÅäÌ壬Ȼºóʹ½ðÊôÀë×ÓÓëÖ®ÂçºÏ£¬ºÏ³É¹ÌÔØ»¯µÄ½ðÊôÅäºÏÎÕâÒ²ÊÇĿǰ¿ª·¢½é¿×·Ö×Óɸ´ß»¯¼Á×îΪ»îÔ¾µÄÑо¿ÁìÓòÖ®Ò»¡£Èç°ÑSchiff-Mn(¢ó)ÅäºÏÎï¡¢îÉ߲߸ÅäºÏÎï¡¢ÊÖÐÔµÄSalen Mn(¢ó)ÅäºÏÎï¡¢Cr(¢ó)-ÁªÝÁϯ·ò¼îÅäºÏÎïµÈ½ÓÖ¦µ½MCM-41µÄ¿×µÀÄÚ£¬ÕâЩÅäºÏÎï´ß»¯¼ÁÓÃÓÚÏ©ÌþµÄ»·Ñõ»¯·´Ó¦£¬¾ßÓиüºÃµÄ»îÐÔºÍÑ¡ÔñÐÔ£¬±íÏÖ³öÁ˷dz£ÓÕÈ˵ÄÓ¦ÓÃǰ¾°¡£
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

pharmjackie

ľ³æ (ÕýʽдÊÖ)

¡ï ¡ï ¡ï ¡ï
yutm63(½ð±Ò+4):¼¸¸öרҵ´Ê»ã·­Ò벻ȷÇУ¬»¹ÓÐ×îºóÒ»ÐÐiceberg ÊÇʲôÒâ˼ 1-23 22:12
×Ô¼ºÊÔÒëÏ£¬ÇëÂ¥Ö÷¸ù¾Ý×Ô¼ºµÄÌõ¼þÊʵ±Ð޸ģºÍ¬Ê±Çë¸ßÊÖÖ¸Õý£¡
The big pore size characteristic of molecule sieves such as MCM-41 and the silanol hydroxyl group which is subject to alkylation made it possible to synthesize ligands in the pores of the moleucle sieves, and then to chelate with metal ions to form solid-support metal compexes. This is among one of the most active field in the development of pore-mediated molecule sieves catalysts. For example, Schiff-Mn(III)complexes, Ruhenium-porphyrin complexes, chiral Salen-Mn(III)complexes, Cr(III)-binaphthyl Schiff base complexes linked to Mcm-41 all showed better activity and selectivity in the cyclooxidation of olefins, depicting an iceberg of it's application prospect.
2Â¥2009-01-20 20:37:36
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

innovision

Í­³æ (³õÈëÎÄ̳)

¡ï ¡ï
yutm63(½ð±Ò+2,VIP+0):xie xie 3-11 09:24
Based on the macroporous structure and "alkylable" nature of silanol groups of MCM-41 and other molecular sieves, it was possible to synthesise ligands within the tunnels of those molecular sieves. With subsequent chelation with metal ions, the complexes formed were anchored on a solid phase. This methodology has also become one of the most intensively researched field in the development of pore-mediated molecule sieves catalysts. For example, embedded Schiff-Mn(III)complexes, Ruthenium-porphyrin complexes, chiral Salen-Mn(III)complexes, Cr(III)-binaphthyl Schiff base complexes in Mcm-41 all showed better efficiency and selectivity in the epoxidation of olefins, showing great promise in its future applications.
3Â¥2009-01-29 00:52:23
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

pharmjackie

ľ³æ (ÕýʽдÊÖ)

¡ï ¡ï
yutm63(½ð±Ò+2,VIP+0):xie xie 3-11 09:25
iceberg±ùɽ֮Ò⣬¼´Õ¹Ê¾Á˱ùɽµÄÒ»½Ç¡£Ï£ÍûÄÜ·ûºÏÄãµÄÐèÒª¡£
4Â¥2009-01-29 13:36:38
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ yutm63 µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[»ù½ðÉêÇë] ÃæÉϵÄË®ºÜÉî +13 ²¼²¼ºÍÒ»¶þ 2026-07-18 18/900 2026-07-18 20:37 by ÈÕÔÂÌìµØ
[»ù½ðÉêÇë] ¹úÉç¿ÆÍ¨Ñ¶ÆÀÉó +4 DZˮ¹Ú¾ü123 2026-07-18 5/250 2026-07-18 19:58 by chenmodeyu
[»ù½ðÉêÇë] 5¸ö%2F£¬·Ç¹Ì¶¨¶Î22¸ö×Öĸ +8 jaasxulu 2026-07-15 9/450 2026-07-18 17:40 by dxcgbm
[»ù½ðÉêÇë] ÉúÃü¿ÚC13ÃæÉÏ»áÆÀʱ¼ä +7 luckinging 2026-07-14 11/550 2026-07-17 20:43 by ³æ²·1988
[½Ìʦ֮¼Ò] ÄÚÐÄØÑ·¦ +16 Ë®±ùÔÂÔÂÒ°Íà 2026-07-12 16/800 2026-07-17 19:25 by otani
[»ù½ðÉêÇë] ÉúÃü¿ÚÃæÉÏ»áÆÀ½áÊøÁËÂð´ó¼ÒÓÐÖªµÀ½á¹ûÂð£¿ÏÖÔÚ»¹Ã»Óнá¹ûÕý³£²»£¿ +6 ±ÌË®00 2026-07-16 9/450 2026-07-17 15:21 by jaasxulu
[ÂÛÎÄͶ¸å] ͶӢÎÄÆÚ¿¯ÈçºÎ²éÖØ 10+5 ²»ÖªµÀȡʲôÃû× 2026-07-15 6/300 2026-07-17 09:07 by bobvan
[»ù½ðÉêÇë] ²»ÒªÔÙÊý¹ú×ÔÈ»ÉêÇëÊéµÄ filecode µÄ·Ö¸ô·û¸öÊýÁË +14 sadpencil 2026-07-12 21/1050 2026-07-17 00:15 by wangze12014
[Óлú½»Á÷] ²®°·Éϼ׻ùÇóÖú 100+4 002tmumu 2026-07-14 7/350 2026-07-16 19:47 by 002tmumu
[ÂÛÎÄͶ¸å] ¿ç³ö°æÉçÉÌͶ¸å 20+5 ÄߺÃ520 2026-07-13 5/250 2026-07-16 17:24 by ÎÞÊÓ¾üÍÅ
[»ù½ðÉêÇë] ÉúÉúÃüѧ²¿»áÆÀ +4 wuke100666 2026-07-15 4/200 2026-07-16 00:12 by À²À²Ð¡ÄÝ×Ó
[»ù½ðÉêÇë] H¿Ú£¬ÃæÉÏ£¬Ê±¼ä´Á7ÔÂ7ÈÕ¡£ +3 plumage5 2026-07-15 3/150 2026-07-15 21:06 by 6543yes
[»ù½ðÉêÇë] Сľ³æÃ»ÂäÁË£¬³ýÁËÆíµ»Ìû×Ó£¬¼¸ºõ¿´²»µ½ÓмÛÖµµÄÌû×Ó +13 botar 2026-07-14 14/700 2026-07-15 19:28 by º®Á÷32
[»ù½ðÉêÇë] »áÆÀ +5 ÎÞÃûÕßµÇɽ 2026-07-15 5/250 2026-07-15 18:15 by ¸Ü¾ÍÊÇÄã¶Ô
[»ù½ðÉêÇë] E¿Ú»áÆÀ +11 ²¼²¼ºÍÒ»¶þ 2026-07-13 13/650 2026-07-15 16:34 by Kittylucky
[»ù½ðÉêÇë] E¿ÚÇàC»áÆÀ½áÊøÁËÂ𣿠40+3 ССÊ鳿c 2026-07-14 9/450 2026-07-15 16:04 by °²¾²µÄÖªÁË
[ÂÛÎÄͶ¸å] ũҵ»úеѧ±¨Í¶¸åÖÜÆÚ +3 G0DLIN 2026-07-14 7/350 2026-07-15 09:26 by xs74101122
[»ù½ðÉêÇë] ¹ú×ÔÈ»ÃæÉÏD¿ÚÆíµ» +4 monkeynana 2026-07-14 4/200 2026-07-15 09:14 by °×Ë®Öó
[»ù½ðÉêÇë] ûÊÕµ½ÏûÏ¢£¬ÔÙ´ÎÅãÅÜ +3 Ìì¿ÕÐdz½fly 2026-07-14 3/150 2026-07-14 19:14 by 6543yes
[»ù½ðÉêÇë] Ã÷ÌìE¿ÚÃæÉÏ»áÆÀ +8 ²¼²¼ºÍÒ»¶þ 2026-07-12 9/450 2026-07-13 22:59 by QTSorange
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û