# Optical absorption spectrum of 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran, [DCM] in methanol # # Data from PhotochemCAD 2.1a has been munged on 2 June 2017 by Scott Prahl to make # the information available to non-Windows users. Although I have tried to be as careful # as possible, I may have introduced some error; the cautious user is advised to compare # these results with the original sources at www.photochemcad.com: # # H. Du, R. A. Fuh, J. Li, A. Corkan, J. S. Lindsey, "PhotochemCAD: A computer-aided design # and research tool in photochemistry," Photochem. Photobiol., 68, 141-142, 1998. # J. M. Dixon, M. Taniguchi and J. S. Lindsey "PhotochemCAD 2. A refined program with accompanying # spectral databases for photochemical calculations", Photochem. Photobiol., 81, 212-213, 2005. # # The spectral absorption measurements were made by R.-C. A. Fuh on 06-23-1995 using a Cary 3. # The absorption values were collected using a spectral bandwidth of 1.0 nm, a signal averaging time of 0.133 sec, a data interval of 0.25 nm, and a scan rate of 112.5 nm/min. # # These measurements were scaled to make the molar extinction coefficient match # the value of 42000 cm-1/M at 468.5 nm. These values were # then interpolated to report extinction coefficients at regular 1nm intervals # # The reported molar extinction coefficient is from # Meyer, M., J.-C. Mialocq and B. Perly (1990) Photoinduced intramolecular charge transfer and trans-cis isomerization of the DCM styrene dye. Picosecond and nanosecond laser spectroscopy, high-performance liquid chromatography, and nuclear magnetic resonance studies. J. Phys. Chem. 94, 98-104. # ##Wavelength (nm) Molar Extinction (cm-1/M) 219 9502 220 9196 221 8914 222 8672 223 8458 224 8263 225 8082 226 7905 227 7727 228 7560 229 7403 230 7262 231 7134 232 7012 233 6903 234 6810 235 6724 236 6640 237 6555 238 6461 239 6355 240 6246 241 6141 242 6039 243 5946 244 5854 245 5760 246 5667 247 5573 248 5496 249 5442 250 5423 251 5440 252 5504 253 5596 254 5732 255 5904 256 6112 257 6347 258 6603 259 6874 260 7156 261 7443 262 7737 263 8027 264 8313 265 8591 266 8865 267 9135 268 9394 269 9636 270 9847 271 10035 272 10186 273 10301 274 10394 275 10458 276 10508 277 10561 278 10613 279 10680 280 10741 281 10818 282 10901 283 10993 284 11075 285 11157 286 11203 287 11229 288 11251 289 11239 290 11201 291 11149 292 11072 293 10980 294 10886 295 10782 296 10676 297 10567 298 10453 299 10335 300 10210 301 10081 302 9922 303 9759 304 9596 305 9418 306 9226 307 9041 308 8863 309 8709 310 8575 311 8463 312 8381 313 8327 314 8305 315 8295 316 8302 317 8326 318 8353 319 8385 320 8428 321 8473 322 8521 323 8579 324 8654 325 8744 326 8850 327 8960 328 9082 329 9191 330 9300 331 9405 332 9486 333 9540 334 9574 335 9586 336 9583 337 9565 338 9544 339 9525 340 9527 341 9547 342 9592 343 9663 344 9751 345 9865 346 9989 347 10113 348 10209 349 10276 350 10308 351 10292 352 10241 353 10150 354 10023 355 9893 356 9765 357 9645 358 9562 359 9512 360 9481 361 9506 362 9616 363 9821 364 10070 365 10313 366 10508 367 10646 368 10823 369 10976 370 11072 371 11109 372 11088 373 10996 374 10856 375 10678 376 10499 377 10325 378 10175 379 10055 380 9995 381 9984 382 10038 383 10127 384 10296 385 10511 386 10767 387 11042 388 11360 389 11686 390 12018 391 12332 392 12643 393 12911 394 13151 395 13356 396 13543 397 13699 398 13824 399 13969 400 14124 401 14274 402 14436 403 14659 404 14915 405 15216 406 15510 407 15857 408 16251 409 16699 410 17150 411 17610 412 18109 413 18615 414 19108 415 19674 416 20237 417 20755 418 21306 419 21889 420 22510 421 23097 422 23650 423 24204 424 24804 425 25408 426 25992 427 26601 428 27109 429 27695 430 28310 431 28828 432 29417 433 29980 434 30535 435 31091 436 31661 437 32196 438 32694 439 33233 440 33842 441 34371 442 34860 443 35383 444 35871 445 36391 446 36886 447 37311 448 37702 449 38143 450 38553 451 38938 452 39322 453 39606 454 40006 455 40224 456 40510 457 40889 458 40989 459 41112 460 41320 461 41472 462 41752 463 41758 464 41787 465 41856 466 41878 467 41995 468 42052 469 41947 470 41847 471 41869 472 41809 473 41642 474 41462 475 41169 476 41122 477 41081 478 40775 479 40545 480 40249 481 39927 482 39760 483 39341 484 39054 485 38660 486 38181 487 38043 488 37705 489 36911 490 36451 491 35896 492 35361 493 34822 494 34292 495 33608 496 33038 497 32411 498 31815 499 31025 500 30343 501 29656 502 28919 503 28231 504 27469 505 26702 506 25969 507 25194 508 24437 509 23656 510 22892 511 22153 512 21386 513 20644 514 19888 515 19138 516 18381 517 17676 518 16989 519 16273 520 15592 521 14917 522 14268 523 13632 524 12990 525 12390 526 11781 527 11213 528 10665 529 10136 530 9616 531 9098 532 8622 533 8159 534 7712 535 7285 536 6881 537 6493 538 6106 539 5771 540 5425 541 5086 542 4780 543 4497 544 4224 545 3958 546 3705 547 3469 548 3244 549 3045 550 2849 551 2663 552 2485 553 2328 554 2173 555 2018 556 1885 557 1768 558 1650 559 1541 560 1436 561 1335 562 1248 563 1167 564 1085 565 1013 566 943 567 884 568 821 569 768 570 719 571 670 572 623 573 588 574 552 575 517 576 483 577 455 578 428 579 403 580 386 581 368 582 334 583 320 584 311 585 298 586 280 587 268 588 255 589 249 590 237 591 233 592 222 593 217 594 209 595 203 596 196 597 190 598 187 599 186 600 180 601 174 602 173 603 167 604 166 605 165 606 162 607 156 608 153 609 156 610 154 611 154 612 147 613 153 614 151 615 150 616 147 617 145 618 147 619 152 620 146 621 139 622 143 623 141 624 137 625 141 626 142 627 139 628 140 629 140 630 141 631 135 632 131 633 135 634 136 635 138 636 139 637 138 638 142 639 136 640 136 641 138 642 140 643 129 644 135 645 133 646 132 647 137 648 137 649 129 650 130 651 125 652 131 653 125 654 126 655 135 656 135 657 76 658 104 659 127 660 125 661 118 662 126 663 125 664 127 665 128 666 120 667 121 668 129 669 129 670 123 671 123 672 119 673 120 674 119 675 120 676 116 677 117 678 118 679 114 680 114 681 110 682 110 683 109 684 110 685 110 686 107 687 106 688 109 689 104 690 107 691 102 692 101 693 102 694 97 695 97 696 94 697 95 698 91 699 92 700 88